Remove cohost endpoints

They'll be back, I promise!

src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/Extensions/IServiceCollectionExtensions.cs

@@ -114,29 +114,20 @@ public static void AddDiagnosticServices(this IServiceCollection services)
         services.AddSingleton(sp => new Lazy<RazorTranslateDiagnosticsService>(sp.GetRequiredService<RazorTranslateDiagnosticsService>));
     }
 
-    public static void AddHoverServices(this IServiceCollection services, LanguageServerFeatureOptions featureOptions)
+    public static void AddHoverServices(this IServiceCollection services)
     {
-        // Hover services aren't needed in a cohosted world
-        if (featureOptions.UseRazorCohostServer)
-        {
-            return;
-        }
-
         services.AddHandlerWithCapabilities<HoverEndpoint>();
 
         services.AddSingleton<IHoverService, HoverService>();
     }
 
-    public static void AddSemanticTokensServices(this IServiceCollection services, LanguageServerFeatureOptions featureOptions)
+    public static void AddSemanticTokensServices(this IServiceCollection services)
     {
-        if (!featureOptions.UseRazorCohostServer)
-        {
-            services.AddHandlerWithCapabilities<SemanticTokensRangeEndpoint>();
-            // Ensure that we don't add the default service if something else has added one.
-            services.TryAddSingleton<IRazorSemanticTokensInfoService, RazorSemanticTokensInfoService>();
+        services.AddHandlerWithCapabilities<SemanticTokensRangeEndpoint>();
+        // Ensure that we don't add the default service if something else has added one.
+        services.TryAddSingleton<IRazorSemanticTokensInfoService, RazorSemanticTokensInfoService>();
 
-            services.AddSingleton<RazorSemanticTokensLegendService>();
-        }
+        services.AddSingleton<RazorSemanticTokensLegendService>();
 
         services.AddHandler<RazorSemanticTokensRefreshEndpoint>();
 
@@ -240,12 +231,7 @@ public static void AddDocumentManagementServices(this IServiceCollection service
             services.AddSingleton<DocumentProcessedListener, RazorDiagnosticsPublisher>();
         }
 
-        // Don't generate documents in the language server if cohost is enabled, let cohost do it.
-        if (!featureOptions.UseRazorCohostServer)
-        {
-            services.AddSingleton<DocumentProcessedListener, GeneratedDocumentSynchronizer>();
-        }
-
+        services.AddSingleton<DocumentProcessedListener, GeneratedDocumentSynchronizer>();
         services.AddSingleton<DocumentProcessedListener, CodeDocumentReferenceHolder>();
 
         services.AddSingleton<IProjectSnapshotManagerAccessor, LspProjectSnapshotManagerAccessor>();

src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/Hover/HoverEndpoint.cs

@@ -2,7 +2,6 @@
 // Licensed under the MIT license. See License.txt in the project root for license information.
 
 using System;
-using System.Diagnostics;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Razor.LanguageServer.Common;
@@ -29,7 +28,6 @@ public HoverEndpoint(
         : base(languageServerFeatureOptions, documentMappingService, clientConnection, loggerFactory.CreateLogger<HoverEndpoint>())
     {
         _hoverService = hoverService ?? throw new ArgumentNullException(nameof(hoverService));
-        Debug.Assert(languageServerFeatureOptions.UseRazorCohostServer == false, "This endpoint should not be registered when using the Razor Cohost server.");
     }
 
     public void ApplyCapabilities(VSInternalServerCapabilities serverCapabilities, VSInternalClientCapabilities clientCapabilities)

src/Razor/src/Microsoft.AspNetCore.Razor.LanguageServer/RazorLanguageServer.cs

@@ -128,13 +128,13 @@ protected override ILspServices ConstructLspServices()
         services.AddLifeCycleServices(this, _clientConnection, _lspServerActivationTracker);
 
         services.AddDiagnosticServices();
-        services.AddSemanticTokensServices(featureOptions);
+        services.AddSemanticTokensServices();
         services.AddDocumentManagementServices(featureOptions);
         services.AddCompletionServices(featureOptions);
         services.AddFormattingServices();
         services.AddCodeActionsServices();
         services.AddOptionsServices(_lspOptions);
-        services.AddHoverServices(featureOptions);
+        services.AddHoverServices();
         services.AddTextDocumentServices();
 
         // Auto insert
@@ -183,11 +183,8 @@ static void AddHandlers(IServiceCollection services, LanguageServerFeatureOption
             services.AddHandler<RazorBreakpointSpanEndpoint>();
             services.AddHandler<RazorProximityExpressionsEndpoint>();
 
-            if (!featureOptions.UseRazorCohostServer)
-            {
-                services.AddHandlerWithCapabilities<DocumentColorEndpoint>();
-                services.AddSingleton<IDocumentColorService, DocumentColorService>();
-            }
+            services.AddHandlerWithCapabilities<DocumentColorEndpoint>();
+            services.AddSingleton<IDocumentColorService, DocumentColorService>();
 
             services.AddHandler<ColorPresentationEndpoint>();
             services.AddHandlerWithCapabilities<FoldingRangeEndpoint>();
@@ -197,13 +194,10 @@ static void AddHandlers(IServiceCollection services, LanguageServerFeatureOption
             services.AddHandlerWithCapabilities<DocumentSymbolEndpoint>();
             services.AddHandlerWithCapabilities<MapCodeEndpoint>();
 
-            if (!featureOptions.UseRazorCohostServer)
-            {
-                services.AddSingleton<IInlayHintService, InlayHintService>();
+            services.AddSingleton<IInlayHintService, InlayHintService>();
 
-                services.AddHandlerWithCapabilities<InlayHintEndpoint>();
-                services.AddHandler<InlayHintResolveEndpoint>();
-            }
+            services.AddHandlerWithCapabilities<InlayHintEndpoint>();
+            services.AddHandler<InlayHintResolveEndpoint>();
         }
     }