System.Linq.Expressions dependency in redundant

src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj

@@ -30,10 +30,6 @@
     <Reference Include="Microsoft.CSharp" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netcoreapp1.0' ">
-    <PackageReference Include="System.Linq.Expressions" Version="4.1.1" />
-  </ItemGroup>
-
   <ItemGroup>
     <Compile Include="..\Grpc.Core\Version.cs" />
   </ItemGroup>