Fix Merge conflicts

Author: ViktorHofer

src/libraries/Directory.Build.props

@@ -160,14 +160,6 @@
     <ProjectExclusions Include="$(MSBuildThisFileDirectory)\System.Utf8String.Experimental\**\*.csproj" Condition="'$(RuntimeFlavor)' == 'Mono'" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(IsTestProject)' != 'true'">
-    <PackageReference Include="Microsoft.DotNet.Build.Tasks.Packaging" Version="$(MicrosoftDotNetBuildTasksPackagingVersion)" PrivateAssets="all" IsImplicitlyDefined="true" />
-    <PackageReference Include="Microsoft.DotNet.GenFacades" Version="$(MicrosoftDotNetGenFacadesVersion)" PrivateAssets="all" IsImplicitlyDefined="true" />
-    <PackageReference Include="Microsoft.DotNet.ApiCompat" Condition="'$(DotNetBuildFromSource)' != 'true'" Version="$(MicrosoftDotNetApiCompatVersion)" PrivateAssets="all" IsImplicitlyDefined="true" />
-    <PackageReference Include="Microsoft.DotNet.GenAPI" Condition="'$(DotNetBuildOffline)' != 'true'" Version="$(MicrosoftDotNetGenApiVersion)" PrivateAssets="all" IsImplicitlyDefined="true" />
-    <PackageReference Include="illink.tasks" Version="$(ILLinkTasksVersion)" PrivateAssets="all" IsImplicitlyDefined="true" ExcludeAssets="build" GeneratePathProperty="true" />
-  </ItemGroup>
-
   <PropertyGroup>
     <_runtimeOSVersionIndex>$(RuntimeOS.IndexOfAny(".-0123456789"))</_runtimeOSVersionIndex>
     <_runtimeOSFamily Condition="'$(_runtimeOSVersionIndex)' != '-1'">$(RuntimeOS.SubString(0, $(_runtimeOSVersionIndex)))</_runtimeOSFamily>