Remove LanguageTargets switch (dotnet/corefx#37875)

Commit migrated from 9963d520d3

eng/dir.traversal.targets

@@ -1,32 +1,6 @@
 <Project>
   <Import Project="$([MSBuild]::GetPathOfFileAbove(Directory.Build.targets))" />
 
-  <Target Name="ProducesPackageId"
-          Returns="@(PackageIds)"
-          DependsOnTargets="FilterProjects">
-    <MSBuild Targets="ProducesPackageId"
-             Projects="@(Project)"
-             BuildInParallel="true"
-             ContinueOnError="ErrorAndContinue">
-      <Output TaskParameter="TargetOutputs"
-              ItemName="PackageIds" />
-    </MSBuild>
-    <ItemGroup>
-      <PackageIds Include="@(PackageIds)" />
-    </ItemGroup>
-  </Target>
-
-  <Target Name="ProducesTarget" DependsOnTargets="FilterProjects">
-    <MSBuild Targets="ProducesPackageId"
-             Projects="@(Project)"
-             BuildInParallel="true"
-             ContinueOnError="ErrorAndContinue">
-      <Output TaskParameter="TargetOutputs"
-              ItemName="PackageIds" />
-    </MSBuild>
-    <Message Text="%(PackageIds.Identity)" Importance="High" />
-  </Target>
-
   <Target Name="BuildAllProjects" DependsOnTargets="FilterProjects">
     <PropertyGroup>
       <DefaultBuildAllTarget Condition="'$(DefaultBuildAllTarget)'==''">$(MSBuildProjectDefaultTargets)</DefaultBuildAllTarget>

eng/references.props

@@ -0,0 +1,10 @@
+<Project>
+  <PropertyGroup>
+    <!--
+      The Microsoft.NET.Sdk defaults the AssemblySearchPaths earlier, so default
+      the correct search paths here. We are rather restrictive by design - only ref assemblies should
+      be resolved by default.
+    -->
+    <AssemblySearchPaths>$(AssemblySearchPaths);$(RefPath);{RawFileName}</AssemblySearchPaths>
+  </PropertyGroup>
+</Project>

src/libraries/Directory.Build.props

@@ -12,13 +12,6 @@
     <GenerateRuntimeConfigurationFiles>false</GenerateRuntimeConfigurationFiles>
 
     <CodeAnalysisRuleset>$(MSBuildThisFileDirectory)CodeAnalysis.ruleset</CodeAnalysisRuleset>
-
-    <!--
-      The Microsoft.NET.Sdk defaults the AssemblySearchPaths earlier than buildtools, so default
-      the correct search paths here. We are rather restrictive by design - only ref assemblies should
-      be resolved by default.
-    -->
-    <AssemblySearchPaths>$(AssemblySearchPaths);$(RefPath);{RawFileName}</AssemblySearchPaths>
   </PropertyGroup>
 
   <!-- Use msbuild path functions as that property is used in bash scripts. -->

src/libraries/Directory.Build.targets

@@ -62,10 +62,6 @@
   <Target Name="GetDocumentationFile"
           Returns="$(DocumentationFile)"/>
 
-  <Target Name="DumpTargets" BeforeTargets="ResolveProjectReferences">
-    <Message Text="DumpTargets> $(OutputPath), C=[$(Configuration)], CG=[$(ConfigurationGroup)], OG=[$(OSGroup)], TG=[$(TargetGroup)]" Importance="Low" />
-  </Target>
-
   <!-- This target will be moved into buildtools. Checked in here for now to add validationand in order not to block buildtools ingestion. -->
   <Target Name="ValidateExcludeCompileDesktop" AfterTargets="GetPackageDependencies" Inputs="%(Dependency.Identity);%(Dependency.TargetFramework)" Outputs="unused">
     <PropertyGroup>