Update dependencies and remove some unused version variable overrides (dotnet/aspnetcore-tooling#238)

* Update dependencies
* Add workaround for dotnet/sdkdotnet/aspnetcore-tooling#2976
* Remove unused NETStandard package version variable and overrides
* Update xunit to 2.4.1
\n\nCommit migrated from 67082970b7

src/Razor/Microsoft.NET.Sdk.Razor/test/BuildVariables.cs

@@ -7,7 +7,6 @@ namespace Microsoft.AspNetCore.Razor.Design.IntegrationTests
     {
         private static string _msBuildPath = string.Empty;
         private static string _microsoftNETCoreApp30PackageVersion = string.Empty;
-        private static string _netStandardLibrary20PackageVersion = string.Empty;
 
         static partial void InitializeVariables();
 
@@ -28,14 +27,5 @@ namespace Microsoft.AspNetCore.Razor.Design.IntegrationTests
                 return _microsoftNETCoreApp30PackageVersion;
             }
         }
-
-        public static string NETStandardLibrary20PackageVersion
-        {
-            get
-            {
-                InitializeVariables();
-                return _netStandardLibrary20PackageVersion;
-            }
-        }
     }
 }

src/Razor/Microsoft.NET.Sdk.Razor/test/IntegrationTests/MSBuildIntegrationTestBase.cs

@@ -74,7 +74,6 @@ namespace Microsoft.AspNetCore.Razor.Design.IntegrationTests
                 "/p:RunningAsTest=true",
 
                 $"/p:MicrosoftNETCoreApp30PackageVersion={BuildVariables.MicrosoftNETCoreApp30PackageVersion}",
-                $"/p:NETStandardLibrary20PackageVersion={BuildVariables.NETStandardLibrary20PackageVersion}",
             };
 
             if (!suppressRestore)

src/Razor/Microsoft.NET.Sdk.Razor/test/Microsoft.NET.Sdk.Razor.Test.csproj

@@ -73,7 +73,6 @@ namespace Microsoft.AspNetCore.Razor.Design.IntegrationTests
         {
             _msBuildPath = @"$(_DesktopMSBuildPath)";
             _microsoftNETCoreApp30PackageVersion = "$(MicrosoftNETCoreApp30PackageVersion)";
-            _netStandardLibrary20PackageVersion = "$(NETStandardLibrary20PackageVersion)";
         }
     }
 }

src/Razor/test/Microsoft.AspNetCore.Razor.Test.Common/Microsoft.AspNetCore.Razor.Test.Common.csproj

@@ -17,7 +17,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Testing" Version="$(MicrosoftAspNetCoreTestingPackageVersion)" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="$(MicrosoftCodeAnalysisCSharpPackageVersion)" />
     <PackageReference Include="Microsoft.Extensions.DependencyModel" Version="$(MicrosoftExtensionsDependencyModelPackageVersion)" />
-    <PackageReference Include="xunit" Version="$(XunitPackageVersion)" />
+    <PackageReference Include="xunit" Version="$(XunitVersion)" />
   </ItemGroup>
 
 </Project>

src/Razor/test/testassets/Directory.Build.props

@@ -13,11 +13,6 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <!-- aspnet/BuildTools#662 Don't police what version of NetCoreApp we use -->
-    <NETCoreAppMaximumVersion>99.9</NETCoreAppMaximumVersion>
-
-    <NETStandardImplicitPackageVersion>$(NETStandardLibrary20PackageVersion)</NETStandardImplicitPackageVersion>
-
     <!-- Working around an issue in XDT transforms -->
     <AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>
   </PropertyGroup>