fix test explorer in vs (#16281)

Co-authored-by: Petr <psfinaki@users.noreply.github.com>

Author: majocha

tests/FSharp.Test.Utilities/FSharp.Test.Utilities.fsproj

@@ -19,6 +19,10 @@
     <IntermediateOutputPath>$(ArtifactsDir)obj/$(MSBuildProjectName)/$(Configuration)/</IntermediateOutputPath>
   </PropertyGroup>
 
+  <ItemGroup>
+    <ProjectCapability Remove="TestContainer" />
+  </ItemGroup>
+
   <ItemGroup>
     <Compile Include="..\scripts\scriptlib.fsx">
       <Link>scriptlib.fsx</Link>