Reenable workarounds for Razor projects

Author: wtgodbe

Directory.Build.targets

@@ -120,10 +120,10 @@
       <TargetingPackVersion Condition="'%(TargetFramework)' == '$(DefaultNetCoreTargetFramework)' and '$(IsServicingBuild)' != 'true'">$(MicrosoftNETCoreAppRefPackageVersion)</TargetingPackVersion>
     </KnownFrameworkReference>
 
-    <!-- Workaround while there is no publicly released 5.0 SDK available for source build (except for Razor projects, which use a 5.0 SDK already) -->
+    <!-- Workaround while there is no publicly released 5.0 SDK available for source build -->
     <FrameworkReference 
       Update="Microsoft.NETCore.App"
-      Condition="'$(TargetFramework)' == '$(DefaultNetCoreTargetFramework)' and '$(DotNetBuildFromSource)' == 'true' and '$(RazorLangVersion)' == ''"
+      Condition="'$(TargetFramework)' == '$(DefaultNetCoreTargetFramework)' and '$(DotNetBuildFromSource)' == 'true'"
       RuntimeFrameworkVersion="$(MicrosoftNETCoreAppRuntimeVersion)"
       TargetingPackVersion="$(MicrosoftNETCoreAppRefPackageVersion)"
       />

eng/Workarounds.targets

@@ -38,8 +38,7 @@
   </ItemGroup>
 
   <!-- Source Build still uses a 3.0 SDK, which we need to retarget to 5.0 until the first 5.0 SDK is publicly released -->
-  <!-- Razor projects already use a 5.0 SDK, so we shouldn't retarget those -->
-  <ItemGroup Condition="'$(DotNetBuildFromSource)' == 'true' and '$(RazorLangVersion)' == ''">
+  <ItemGroup Condition="'$(DotNetBuildFromSource)' == 'true'">
     <KnownFrameworkReference
       Include="@(KnownFrameworkReference->WithMetadataValue('TargetFramework', 'netcoreapp3.0'))"
       TargetFramework="netcoreapp5.0"