Download artifacts in parallel (#18549)

src/redist/targets/BundledDotnetTools.targets

@@ -28,10 +28,7 @@
       </BundledToolLayoutProject>
     </ItemGroup>
 
-    <MSBuild
-        BuildInParallel="False"
-        Projects="@(BundledToolLayoutProject)">
-    </MSBuild>
+    <MSBuild Projects="@(BundledToolLayoutProject)" />
   </Target>
 
 </Project>

src/redist/targets/Crossgen.targets

@@ -26,10 +26,7 @@
       </CrossGenDownloadPackageProject>
     </ItemGroup>
 
-    <MSBuild
-      BuildInParallel="False"
-      Projects="@(CrossGenDownloadPackageProject)">
-    </MSBuild>
+    <MSBuild Projects="@(CrossGenDownloadPackageProject)" />
 
     <!-- This PropertyGroup contains the paths to the various SDK tooling that should be
          cross-genned. This tooling multi-targets, and we only want to cross-gen the .NET Core

src/redist/targets/GenerateLayout.targets

@@ -409,10 +409,7 @@
       </BundledLayoutPackageDownloadProject>
     </ItemGroup>
 
-    <MSBuild
-      BuildInParallel="False"
-      Projects="@(BundledLayoutPackageDownloadProject)">
-    </MSBuild>
+    <MSBuild Projects="@(BundledLayoutPackageDownloadProject)" />
 
     <ItemGroup>
       <!-- Use lowercase package name in package path -->
@@ -534,10 +531,7 @@
       </AppHostTemplateDownloadPackageProject>
     </ItemGroup>
 
-    <MSBuild
-      BuildInParallel="False"
-      Projects="@(AppHostTemplateDownloadPackageProject)">
-    </MSBuild>
+    <MSBuild Projects="@(AppHostTemplateDownloadPackageProject)" />
 
     <PropertyGroup>
       <AppHostExecutableName>AppHost$(ExeExtension)</AppHostExecutableName>

test/SdkTests/SdkTests.csproj

@@ -82,8 +82,7 @@
 
     <MSBuild Projects="$(MSBuildProjectFullPath)"
          Targets="InstallRuntimeToLayout"
-         Properties="RuntimeVersionToInstall=%(RuntimeVersionToInstall.Identity)"
-         BuildInParallel="false"/>
+         Properties="RuntimeVersionToInstall=%(RuntimeVersionToInstall.Identity)" />
   </Target>
 
   <Target Name="InstallRuntimeToLayout">
@@ -155,9 +154,7 @@
     </ItemGroup>
     
     <MSBuild Projects="@(TestProjectToRun)"
-             Targets="RunTestsAsTool"
-             BuildInParallel="true"
-             />
+             Targets="RunTestsAsTool" />
   </Target>
   
   <Target Name="RunTestsAsTool">