remove xml declarations (#19339)

Directory.Build.props

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!-- Platform needs to be set with TreatAsLocalProperty since it is a global property and cannot be overridden otherwise. -->
 <Project TreatAsLocalProperty="Platform">
 

Directory.Build.targets

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project>
   <Import Project="Sdk.targets" Sdk="Microsoft.DotNet.Arcade.Sdk" />
 

NuGet.config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <solution>
     <add key="disableSourceControlIntegration" value="true" />

TestAssets/TestProjects/SlnFileWithNoProjectReferencesAndUnknownProjectType/UnknownProject/UnknownProject.unknownproj

@@ -1,3 +1,2 @@
-<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 </Project>

TestAssets/TestProjects/docker-compose/docker-compose.dcproj

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.Docker.Sdk">
-<Project Sdk="Microsoft.Docker.Sdk">
   <PropertyGroup Label="Globals">
     <ProjectVersion>2.0</ProjectVersion>
     <DockerTargetOS>Linux</DockerTargetOS>

eng/Version.Details.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
     <!--

eng/common/internal/NuGet.config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
     <clear />

eng/common/loc/P22DotNetHtmlLocalization.lss

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <LS_SETTINGS_FILE>
   <LS_SETTINGS_DESCRIPTION>
     <![CDATA[]]>

eng/common/sdl/NuGet.config

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<configuration>
-<configuration>
   <solution>
     <add key="disableSourceControlIntegration" value="true" />
   </solution>

eng/common/sdl/packages.config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Microsoft.Guardian.Cli" version="0.109.0"/>
 </packages>

eng/loc/wxl_loc.lss

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<LS_SETTINGS_FILE xmlns="">
-<LS_SETTINGS_FILE xmlns="">
 	<LS_SETTINGS_DESCRIPTION>
 		<![CDATA[]]>
 	</LS_SETTINGS_DESCRIPTION>

src/SourceBuild/content/NuGet.config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!--
     This root NuGet.config ensures that a global/default one is not used by accident.
     The individual repo NuGet.config files are utilized during the actual build.

src/SourceBuild/content/eng/Version.Details.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
   </ProductDependencies>

src/SourceBuild/content/eng/bootstrap/buildBootstrapPreviouslySB.csproj

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
 
   <Import Project="$(MSBuildProjectDirectory)/PackageVersions.props" />

src/SourceBuild/content/eng/tools/BinaryToolKit/NuGet.config

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<configuration>
-<configuration>
   <packageSources>
     <clear />
     <!-- %ARTIFACTS_PATH% must be set via an environment variable (export ARTIFACTS_PATH=<path-to-sources>). -->

src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.SourceBuild.Tasks.LeakDetection/NuGet.Config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
     <!--To inherit the global NuGet package sources remove the <clear/> line below -->

src/SourceBuild/content/eng/tools/tasks/Microsoft.DotNet.UnifiedBuild.Tasks/WritePackageVersionsProps.cs

@@ -209,7 +209,6 @@ namespace Microsoft.DotNet.UnifiedBuild.Tasks
             using (var outStream = File.Open(OutputPath, FileMode.Create))
             using (var sw = new StreamWriter(outStream, new UTF8Encoding(false)))
             {
-                sw.WriteLine(@"<?xml version=""1.0"" encoding=""utf-8""?>");
                 sw.WriteLine(@"<Project ToolsVersion=""14.0"" xmlns=""http://schemas.microsoft.com/developer/msbuild/2003"">");
 
                 WriteVersionEntries(sw, packageElementsToWrite, "packages");

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/local.NuGet.Config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
     <clear />

src/SourceBuild/content/test/Microsoft.DotNet.SourceBuild.SmokeTests/assets/online.NuGet.Config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
     <clear />

src/redist/packaging/osx/Distribution-Template

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" standalone="no"?>
 <installer-gui-script minSpecVersion="1">
     <title>{CLISdkBrandName} ({arch})</title>
     <background file="dotnetbackground.png" mime-type="image/png"/>

src/redist/packaging/osx/Distribution-Template-x64

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8" standalone="no"?>
 <installer-gui-script minSpecVersion="1">
     <title>{CLISdkBrandName} ({arch})</title>
     <background file="dotnetbackground.png" mime-type="image/png"/>

src/redist/packaging/osx/resources/conclusion.html.lci

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<LCX SchemaVersion="6.0" Name="D:\a\_work\1\s\src\redist\packaging\osx\resources\conclusion.html" PsrId="22" FileType="1" SrcCul="en-US" Desc="Commenting file created by LCXAdmin. For more information, please visit http://localizability/longhorn/LcxAdmin.asp" xmlns="http://schemas.microsoft.com/locstudio/2006/6/lcx">
-<LCX SchemaVersion="6.0" Name="D:\a\_work\1\s\src\redist\packaging\osx\resources\conclusion.html" PsrId="22" FileType="1" SrcCul="en-US" Desc="Commenting file created by LCXAdmin. For more information, please visit http://localizability/longhorn/LcxAdmin.asp" xmlns="http://schemas.microsoft.com/locstudio/2006/6/lcx">
   <OwnedComments>
     <Cmt Name="LcxAdmin" />
   </OwnedComments>

src/redist/packaging/osx/resources/welcome.html.lci

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<LCX SchemaVersion="6.0" Name="D:\a\_work\1\s\src\redist\packaging\osx\resources\welcome.html" PsrId="22" FileType="1" SrcCul="en-US" Desc="Commenting file created by LCXAdmin. For more information, please visit http://localizability/longhorn/LcxAdmin.asp" xmlns="http://schemas.microsoft.com/locstudio/2006/6/lcx">
-<LCX SchemaVersion="6.0" Name="D:\a\_work\1\s\src\redist\packaging\osx\resources\welcome.html" PsrId="22" FileType="1" SrcCul="en-US" Desc="Commenting file created by LCXAdmin. For more information, please visit http://localizability/longhorn/LcxAdmin.asp" xmlns="http://schemas.microsoft.com/locstudio/2006/6/lcx">
   <OwnedComments>
     <Cmt Name="LcxAdmin" />
   </OwnedComments>

src/redist/packaging/windows/LCID/1028/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName] 安裝程式</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">確定要取消嗎?</String>

src/redist/packaging/windows/LCID/1029/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Instalační program pro [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Opravdu chcete akci zrušit?</String>

src/redist/packaging/windows/LCID/1031/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName]-Installationsprogramm</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Möchten Sie den Vorgang wirklich abbrechen?</String>

src/redist/packaging/windows/LCID/1033/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName] Installer</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Are you sure you want to cancel?</String>

src/redist/packaging/windows/LCID/1036/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Programme d’installation de [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Voulez-vous vraiment annuler ?</String>

src/redist/packaging/windows/LCID/1040/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Programma di installazione di [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Annullare?</String>

src/redist/packaging/windows/LCID/1041/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName] インストーラー</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">取り消しますか?</String>

src/redist/packaging/windows/LCID/1042/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName] 설치 관리자</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">취소하시겠습니까?</String>

src/redist/packaging/windows/LCID/1045/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Instalator pakietu [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Czy na pewno chcesz anulować?</String>

src/redist/packaging/windows/LCID/1046/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Instalador do [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Tem certeza de que deseja cancelar?</String>

src/redist/packaging/windows/LCID/1049/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Установщик [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">Отменить?</String>

src/redist/packaging/windows/LCID/1055/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName] Yükleyicisi</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">İptal etmek istediğinizden emin misiniz?</String>

src/redist/packaging/windows/LCID/2052/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">[WixBundleName] 安装程序</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">是否确实要取消?</String>

src/redist/packaging/windows/LCID/3082/bundle.wxl

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
-<WixLocalization Culture="en-us" Language="1033" xmlns="http://schemas.microsoft.com/wix/2006/localization">
   <String Id="Caption">Instalador de [WixBundleName]</String>
   <String Id="Title">[BUNDLEMONIKER]</String>
   <String Id="ConfirmCancelMessage">¿Está seguro de que desea cancelar la operación?</String>

src/redist/packaging/windows/VS.Redist.Common.Net.Core.SDK.MSBuildExtensions.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Redist.Common.Net.Core.SDK.MSBuildExtensions</id>
         <version>1.0.0</version>

src/redist/packaging/windows/VS.Redist.Common.Net.Core.SDK.VSTemplateLocator.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Redist.Common.Net.Core.SDK.VSTemplateLocator</id>
         <version>1.0.0</version>

src/redist/packaging/windows/VS.Redist.Common.NetCore.SdkPlaceholder.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Redist.Common.NetCore.SdkPlaceholder.$ARCH$.$MAJOR_MINOR$</id>
         <version>1.0.0</version>

src/redist/packaging/windows/VS.Redist.Common.NetCore.Templates.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Redist.Common.NetCore.Templates.$ARCH$.$MAJOR_MINOR$</id>
         <version>1.0.0</version>

src/redist/packaging/windows/VS.Redist.Common.NetCore.Toolset.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Redist.Common.NetCore.Toolset.$ARCH$.$MAJOR_MINOR$</id>
         <version>1.0.0</version>

src/redist/packaging/windows/VS.Tools.Net.Core.SDK.Resolver.cxspec

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <package>
   <aggregate id="MsBuild.Corext" version="15.0"/>
 </package>

src/redist/packaging/windows/VS.Tools.Net.Core.SDK.Resolver.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Tools.Net.Core.SDK.Resolver</id>
         <version>1.0.0</version>

src/redist/packaging/windows/VS.Tools.Net.Core.SDK.nuspec

@@ -1,5 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
-<package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>VS.Tools.Net.Core.SDK.$ARCH$</id>
         <version>1.0.0</version>

src/redist/packaging/windows/bundle.thm

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Theme xmlns="http://wixtoolset.org/schemas/thmutil/2010">
   <Window Width="660" Height="488" HexStyle="100a0000" FontId="0">#(loc.Caption)</Window>
     <Font Id="0" Height="-12" Weight="500" Foreground="000000" Background="FFFFFF">Segoe UI</Font>

src/redist/packaging/windows/bundle.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi"
      xmlns:bal="http://schemas.microsoft.com/wix/BalExtension"
      xmlns:swid="http://schemas.microsoft.com/wix/TagExtension"

src/redist/packaging/windows/dotnet.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?include "Variables.wxi" ?>
   <Product Id="*" Name="$(var.ProductName)" Language="$(var.ProductLanguage)" Version="$(var.ProductVersion)" Manufacturer="$(var.Manufacturer)" UpgradeCode="$(var.UpgradeCode)">

src/redist/packaging/windows/dotnethome_x64.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. -->
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?ifndef Platform?>

src/redist/packaging/windows/manifests.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?include "Variables.wxi" ?>
   <Product Id="*" Name="$(var.ProductName)" Language="$(var.ProductLanguage)" Version="$(var.ProductVersion)" Manufacturer="$(var.Manufacturer)" UpgradeCode="$(var.UpgradeCode)">

src/redist/packaging/windows/provider.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi" xmlns:dep="http://schemas.microsoft.com/wix/DependencyExtension">
   <?include "Variables.wxi" ?>
   <Fragment>

src/redist/packaging/windows/registrykeys.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?include "Variables.wxi" ?>
   <Fragment>

src/redist/packaging/windows/sdkplaceholder.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?include "Variables.wxi" ?>
   <Product Id="*" Name="$(var.ProductName) from Visual Studio" Language="$(var.ProductLanguage)" Version="$(var.SDKBundleVersion)" Manufacturer="$(var.Manufacturer)" UpgradeCode="$(var.UpgradeCode)">

src/redist/packaging/windows/templates.wxs

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?include "Variables.wxi" ?>
   <Product Id="*" Name="$(var.ProductName)" Language="$(var.ProductLanguage)" Version="$(var.ProductVersion)" Manufacturer="$(var.Manufacturer)" UpgradeCode="$(var.UpgradeCode)">

src/redist/packaging/windows/variables.wxi

@@ -1,4 +1,3 @@
-<?xml version="1.0"?>
 <Include xmlns="http://schemas.microsoft.com/wix/2006/wi">
   <?define Servicing_Key_SP   =   "0" ?>
   <?define Servicing_Key_SPIndex   =   "0" ?>

src/redist/targets/GenerateMSIs.targets

@@ -283,7 +283,6 @@
       <WorkloadManifestsWxsPath>$(IntermediateOutputPath)WorkloadManifests.wxs</WorkloadManifestsWxsPath>
       <WorkloadManifestsWxsContent>
 <![CDATA[
-<?xml version="1.0" encoding="utf-8"?>
 <!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. -->
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
     <Fragment>

test/Microsoft.DotNet.Tools.Tests.Utilities/TestAssetInstance.cs

@@ -95,8 +95,7 @@ namespace Microsoft.DotNet.TestFramework
             var newNuGetConfig = Root.GetFile("NuGet.Config");
             externalRestoreSources = externalRestoreSources ?? string.Empty;
 
-            var content = @"<?xml version=""1.0"" encoding=""utf-8""?>
+            var content = @"<configuration>
-            <configuration>
               <packageSources>
                 <add key=""dotnet-core"" value=""https://dotnetfeed.blob.core.windows.net/dotnet-core/index.json"" />
                 <add key=""test-packages"" value=""$fullpath$"" />

tools/sdk-readme-table-generator/old.config

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <solution>
     <add key="disableSourceControlIntegration" value="true" />