Build MvxIocSupportingTest class

MvvmCross.Tests/MvvmCross.Test/MvvmCross.Test.csproj

@@ -4,14 +4,6 @@
     <TargetFramework>netstandard2.0</TargetFramework>
   </PropertyGroup>
 
-  <ItemGroup>
-    <Compile Remove="MvxIoCSupportingTest.cs" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <None Include="MvxIoCSupportingTest.cs" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\..\MvvmCross\MvvmCross.csproj" />
   </ItemGroup>