Don't use MEF to discover a type that's in the same assembly as us

These used to be split up into separate assemblies, but aren't anymore.

src/VisualStudio/Core/Def/IRoslynTelemetrySetup.cs

-// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
-
-using System;
-
-namespace Microsoft.VisualStudio.LanguageServices.Setup
-{
-    /// <summary>
-    /// This interface allows the host to set up a telemetry service during package initialization.
-    /// </summary>
-    internal interface IRoslynTelemetrySetup
-    {
-        void Initialize(IServiceProvider serviceProvider);
-    }
-}

src/VisualStudio/Core/Def/RoslynPackage.cs

@@ -30,6 +30,7 @@
 using static Microsoft.CodeAnalysis.Utilities.ForegroundThreadDataKind;
 using Task = System.Threading.Tasks.Task;
 using Microsoft.CodeAnalysis.Options;
+using Microsoft.VisualStudio.LanguageServices.Telemetry;
 
 namespace Microsoft.VisualStudio.LanguageServices.Setup
 {
@@ -69,11 +70,7 @@ protected override void Initialize()
             // Ensure the options persisters are loaded since we have to fetch options from the shell
             componentModel.GetExtensions<IOptionPersister>();
 
-            var telemetrySetupExtensions = componentModel.GetExtensions<IRoslynTelemetrySetup>();
-            foreach (var telemetrySetup in telemetrySetupExtensions)
-            {
-                telemetrySetup.Initialize(this);
-            }
+            RoslynTelemetrySetup.Initialize(this);
 
             // set workspace output pane
             _outputPane = new WorkspaceFailureOutputPane(this, _workspace);

src/VisualStudio/Core/Def/ServicesVisualStudio.csproj

@@ -165,7 +165,6 @@
     <Compile Include="Implementation\Workspace\VisualStudioNavigationOptions.cs" />
     <Compile Include="Implementation\Workspace\VisualStudioNavigationOptionsProvider.cs" />
     <Compile Include="Implementation\Workspace\VisualStudioProjectCacheHostServiceFactory.cs" />
-    <Compile Include="IRoslynTelemetrySetup.cs" />
     <Compile Include="Packaging\Interop\SVsRemoteControlService.cs" />
     <Compile Include="Packaging\IPackageServicesProxy.cs" />
     <Compile Include="Storage\VisualStudioPersistentStorageLocationService.cs" />

src/VisualStudio/Core/Def/Telemetry/RoslynTelemetrySetup.cs

@@ -11,10 +11,9 @@
 
 namespace Microsoft.VisualStudio.LanguageServices.Telemetry
 {
-    [Export(typeof(IRoslynTelemetrySetup))]
-    internal class RoslynTelemetrySetup : IRoslynTelemetrySetup
+    internal static class RoslynTelemetrySetup
     {
-        public void Initialize(IServiceProvider serviceProvider)
+        public static void Initialize(IServiceProvider serviceProvider)
         {
             var componentModel = (IComponentModel)serviceProvider.GetService(typeof(SComponentModel));
             var optionService = componentModel.GetService<IGlobalOptionService>();