Remove unnecessary usings

samples/Mvc.Server/Controllers/AccountController.cs

@@ -1,6 +1,4 @@
-using System.Linq;
-using System.Security.Claims;
-using System.Threading.Tasks;
+using System.Security.Claims;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;

samples/Mvc.Server/Controllers/AuthorizationController.cs

@@ -4,15 +4,10 @@
  * the license and the contributors participating to this project.
  */
 
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Security.Claims;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authorization;
-using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Primitives;

samples/Mvc.Server/Controllers/ManageController.cs

@@ -1,9 +1,6 @@
-using System.Linq;
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
-using Microsoft.Extensions.Logging;
 using Mvc.Server.Models;
 using Mvc.Server.Services;
 using Mvc.Server.ViewModels.Manage;

samples/Mvc.Server/Controllers/ResourceController.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;

samples/Mvc.Server/Controllers/UserinfoController.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;

samples/Mvc.Server/Helpers/AsyncEnumerableExtensions.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Threading.Tasks;
-
-namespace Mvc.Server.Helpers;
+namespace Mvc.Server.Helpers;
 
 public static class AsyncEnumerableExtensions
 {

samples/Mvc.Server/Helpers/FormValueRequiredAttribute.cs

@@ -1,7 +1,5 @@
-using System;
-using Microsoft.AspNetCore.Mvc.Abstractions;
+using Microsoft.AspNetCore.Mvc.Abstractions;
 using Microsoft.AspNetCore.Mvc.ActionConstraints;
-using Microsoft.AspNetCore.Routing;
 
 namespace Mvc.Server.Helpers;
 

samples/Mvc.Server/Program.cs

@@ -1,7 +1,4 @@
-using Microsoft.AspNetCore.Hosting;
-using Microsoft.Extensions.Hosting;
-
-namespace Mvc.Server;
+namespace Mvc.Server;
 
 public static class Program
 {

samples/Mvc.Server/Services/IEmailSender.cs

@@ -1,6 +1,4 @@
-using System.Threading.Tasks;
-
-namespace Mvc.Server.Services;
+namespace Mvc.Server.Services;
 
 public interface IEmailSender
 {

samples/Mvc.Server/Services/ISmsSender.cs

@@ -1,6 +1,4 @@
-using System.Threading.Tasks;
-
-namespace Mvc.Server.Services;
+namespace Mvc.Server.Services;
 
 public interface ISmsSender
 {

samples/Mvc.Server/Services/MessageServices.cs

@@ -1,6 +1,4 @@
-using System.Threading.Tasks;
-
-namespace Mvc.Server.Services;
+namespace Mvc.Server.Services;
 
 // This class is used by the application to send Email and SMS
 // when you turn on two-factor authentication in ASP.NET Identity.

samples/Mvc.Server/Startup.cs

@@ -1,8 +1,5 @@
-using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Identity;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Configuration;
-using Microsoft.Extensions.DependencyInjection;
 using Mvc.Server.Models;
 using Mvc.Server.Services;
 using Quartz;

samples/Mvc.Server/ViewModels/Account/SendCodeViewModel.cs

@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.Rendering;
 
 namespace Mvc.Server.ViewModels.Account;
 

samples/Mvc.Server/ViewModels/Manage/ConfigureTwoFactorViewModel.cs

@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using Microsoft.AspNetCore.Mvc.Rendering;
+using Microsoft.AspNetCore.Mvc.Rendering;
 
 namespace Mvc.Server.ViewModels.Manage;
 

samples/Mvc.Server/ViewModels/Manage/IndexViewModel.cs

@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using Microsoft.AspNetCore.Identity;
+using Microsoft.AspNetCore.Identity;
 
 namespace Mvc.Server.ViewModels.Manage;
 

samples/Mvc.Server/ViewModels/Manage/ManageLoginsViewModel.cs

@@ -1,5 +1,4 @@
-using System.Collections.Generic;
-using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Identity;
 
 namespace Mvc.Server.ViewModels.Manage;

samples/Mvc.Server/Worker.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Globalization;
-using System.Threading;
-using System.Threading.Tasks;
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
+using System.Globalization;
 using Mvc.Server.Models;
 using OpenIddict.Abstractions;
 using static OpenIddict.Abstractions.OpenIddictConstants;

src/OpenIddict.Server/OpenIddictServerHandlers.Protection.cs

@@ -1175,7 +1175,7 @@ public static partial class OpenIddictServerHandlers
                     return default;
                 }
 
-                if (context.Principal is null or { Identity: not ClaimsIdentity })
+                if (context.Principal is not { Identity: ClaimsIdentity })
                 {
                     throw new InvalidOperationException(SR.GetResourceString(SR.ID0022));
                 }
@@ -1193,10 +1193,7 @@ public static partial class OpenIddictServerHandlers
                     _ => true
                 });
 
-                if (principal is null or { Identity: not ClaimsIdentity })
-                {
-                    throw new InvalidOperationException(SR.GetResourceString(SR.ID0020));
-                }
+                Debug.Assert(principal is { Identity: ClaimsIdentity }, SR.GetResourceString(SR.ID4006));
 
                 var claims = new Dictionary<string, object>(StringComparer.Ordinal);