Undo $(ReferenceReferenceAssemblies) special case in Microsoft.Extensions.ApiDescription.Server project

Author: dougbu

src/Tools/Extensions.ApiDescription.Server/src/Microsoft.Extensions.ApiDescription.Server.csproj

@@ -13,9 +13,6 @@
     <PackageTags>MSBuild;Swagger;OpenAPI;code generation;Web API;service reference;document generation</PackageTags>
     <IsShippingPackage>true</IsShippingPackage>
     <DevelopmentDependency>true</DevelopmentDependency>
-    <!-- Compiling against reference assemblies breaks ProjectReferenceBuildTargets (TODO: investigate why) -->
-    <ReferenceImplementationAssemblies>true</ReferenceImplementationAssemblies>
-    <ReferenceReferenceAssemblies>false</ReferenceReferenceAssemblies>
 
     <!--
       Publish the referenced projects when building .NET Core bits. This is not needed for full framework builds