Remove usage of TaskCache

Author: pranavkm

src/Microsoft.AspNetCore.Server.HttpSys/AuthenticationHandler.cs

@@ -7,7 +7,6 @@
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Http;
-using Microsoft.Extensions.Internal;
 
 namespace Microsoft.AspNetCore.Server.HttpSys
 {
@@ -29,13 +28,13 @@ public Task<AuthenticateResult> AuthenticateAsync()
         public Task ChallengeAsync(AuthenticationProperties properties)
         {
             _requestContext.Response.StatusCode = 401;
-            return TaskCache.CompletedTask;
+            return Task.CompletedTask;
         }
 
         public Task ForbidAsync(AuthenticationProperties properties)
         {
             _requestContext.Response.StatusCode = 403;
-            return TaskCache.CompletedTask;
+            return Task.CompletedTask;
         }
 
         public Task InitializeAsync(AuthenticationScheme scheme, HttpContext context)
@@ -48,7 +47,7 @@ public Task InitializeAsync(AuthenticationScheme scheme, HttpContext context)
                 throw new InvalidOperationException("No RequestContext found.");
             }
 
-            return TaskCache.CompletedTask;
+            return Task.CompletedTask;
         }
 
         public Task SignInAsync(ClaimsPrincipal user, AuthenticationProperties properties)
@@ -58,7 +57,7 @@ public Task SignInAsync(ClaimsPrincipal user, AuthenticationProperties propertie
 
         public Task SignOutAsync(AuthenticationProperties properties)
         {
-            return TaskCache.CompletedTask;
+            return Task.CompletedTask;
         }
     }
 }

src/Microsoft.AspNetCore.Server.HttpSys/FeatureContext.cs

@@ -13,7 +13,6 @@
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Features;
 using Microsoft.AspNetCore.Http.Features.Authentication;
-using Microsoft.Extensions.Internal;
 using Microsoft.Net.Http.Headers;
 
 namespace Microsoft.AspNetCore.Server.HttpSys
@@ -553,7 +552,7 @@ internal Task OnCompleted()
         {
             if (_completed)
             {
-                return TaskCache.CompletedTask;
+                return Task.CompletedTask;
             }
             _completed = true;
             return NotifyOnCompletedAsync();

src/Microsoft.AspNetCore.Server.HttpSys/Microsoft.AspNetCore.Server.HttpSys.csproj

@@ -14,7 +14,6 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.Authentication.Core" Version="$(AspNetCoreVersion)" />
     <PackageReference Include="Microsoft.AspNetCore.Hosting" Version="$(AspNetCoreVersion)" />
-    <PackageReference Include="Microsoft.Extensions.TaskCache.Sources" Version="$(AspNetCoreVersion)" PrivateAssets="All" />
     <PackageReference Include="Microsoft.Net.Http.Headers" Version="$(AspNetCoreVersion)" />
     <PackageReference Include="Microsoft.Win32.Registry" Version="$(CoreFxVersion)" />
     <PackageReference Include="System.Security.Principal.Windows" Version="$(CoreFxVersion)" />

test/Microsoft.AspNetCore.Server.HttpSys.FunctionalTests/DummyApplication.cs

@@ -6,15 +6,14 @@
 using Microsoft.AspNetCore.Hosting.Server;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.Features;
-using Microsoft.Extensions.Internal;
 
 namespace Microsoft.AspNetCore.Server.HttpSys
 {
     internal class DummyApplication : IHttpApplication<HttpContext>
     {
         private readonly RequestDelegate _requestDelegate;
 
-        public DummyApplication() : this(context => TaskCache.CompletedTask) { }
+        public DummyApplication() : this(context => Task.CompletedTask) { }
 
         public DummyApplication(RequestDelegate requestDelegate)
         {