dont inlcude the new assembly if we don't need to

Author: dellis1972

src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.AssemblyResolution.targets

@@ -61,6 +61,8 @@ _ResolveAssemblies MSBuild target.
     <ItemGroup>
       <IntermediateAssembly Remove="@(IntermediateAssembly)" />
       <IntermediateAssembly Include="$(_OuterIntermediateAssembly)" />
+    </ItemGroup>
+    <ItemGroup Condition=" '$(AndroidUseDesignerAssembly)' == 'True' ">
       <ReferenceCopyLocalPaths Include="$(_GenerateResourceDesignerAssemblyOutput)">
         <PostprocessAssembly>True</PostprocessAssembly>
         <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>