Remove unused packageindex infra (#111002)

Author: ViktorHofer

src/coreclr/.nuget/Directory.Build.props

@@ -12,22 +12,13 @@
     <MinOSForArch Condition="'$(PackagePlatform)' == 'arm'">win8</MinOSForArch>
     <MinOSForArch Condition="'$(PackagePlatform)' == 'arm64'">win10</MinOSForArch>
     <PackagePlatform>AnyCPU</PackagePlatform>
-
-    <PackageIndexFile>$(MSBuildThisFileDirectory)packageIndex.json</PackageIndexFile>
-
-    <!-- coreclr doesn't currently use the index so don't force it to be in sync -->
-    <SkipIndexCheck>true</SkipIndexCheck>
   </PropertyGroup>
 
   <!-- CoreCLR nuget packages shouldn't be published during servicing. -->
   <PropertyGroup Condition="'$(PreReleaseVersionLabel)' == 'servicing'">
     <IsShipping>false</IsShipping>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageIndex Condition="'$(MSBuildProjectExtension)' == '.pkgproj'" Include="$(PackageIndexFile)" />
-  </ItemGroup>
-
   <PropertyGroup>
     <!-- build the transport package which includes product and symbols in addition to standard packages
     This is a legacy setting as we tend to use symbol packages for symbol indexing and we don't use

src/coreclr/.nuget/packageIndex.json

@@ -8,14 +8,6 @@
   <PropertyGroup>
     <PackagePlatform Condition="'$(PackagePlatform)' == ''">$(Platform)</PackagePlatform>
     <PackagePlatform Condition="'$(PackagePlatform)' == 'amd64'">x64</PackagePlatform>
-
-    <PackageIndexFile>$(MSBuildThisFileDirectory)packageIndex.json</PackageIndexFile>
-
-    <!-- this repo doesn't currently use the index so don't force it to be in sync -->
-    <SkipIndexCheck>true</SkipIndexCheck>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageIndex Include="$(PackageIndexFile)" />
-  </ItemGroup>
 </Project>

src/installer/pkg/Directory.Build.props

@@ -1,18 +1,12 @@
 <Project>
+
   <!-- Packaging projects (.pkgproj) are non-SDK-style, so they need to directly import Directory.Build.props -->
   <Import Project="..\Directory.Build.props" />
   <Import Project="$(NuGetPackageRoot)\microsoft.dotnet.build.tasks.templating\$(MicrosoftDotNetBuildTasksTemplatingVersion)\build\Microsoft.DotNet.Build.Tasks.Templating.props" />
   <Import Project="$(NuGetPackageRoot)\microsoft.dotnet.build.tasks.packaging\$(MicrosoftDotNetBuildTasksPackagingVersion)\build\Microsoft.DotNet.Build.Tasks.Packaging.props" />
 
   <PropertyGroup>
-    <PackageIndexFile>$(MSBuildThisFileDirectory)packageIndex.json</PackageIndexFile>
     <PackagePlatform>AnyCPU</PackagePlatform>
-
-    <!-- mono doesn't currently use the index so don't force it to be in sync -->
-    <SkipIndexCheck>true</SkipIndexCheck>
   </PropertyGroup>
 
-  <ItemGroup>
-    <PackageIndex Condition="'$(MSBuildProjectExtension)' == '.pkgproj'" Include="$(PackageIndexFile)" />
-  </ItemGroup>
 </Project>