Remove ReadyToRun workaround

build.cmd

@@ -3,7 +3,4 @@
 REM Copyright (c) .NET Foundation and contributors. All rights reserved.
 REM Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
-REM Crossgen Workaround
-set ComPlus_ReadyToRun=0
-
 powershell -NoProfile -NoLogo -Command "%~dp0scripts\run-build.ps1 %*; exit $LastExitCode;"

src/corehost/packaging/init-tools.cmd

@@ -1,9 +1,6 @@
 @if "%_echo%" neq "on" echo off
 setlocal
 
-REM Workaround https://github.com/dotnet/coreclr/issues/2153
-set ComPlus_ReadyToRun=0
-
 set INIT_TOOLS_LOG=%~dp0init-tools.log
 if [%PACKAGES_DIR%]==[] set PACKAGES_DIR=%~dp0packages\
 if [%TOOLRUNTIME_DIR%]==[] set TOOLRUNTIME_DIR=%~dp0Tools