Remove unused usings (#2217)

Source/MQTTnet.AspnetCore/ApplicationBuilderExtensions.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.DependencyInjection;
 using MQTTnet.Server;

Source/MQTTnet.AspnetCore/AspNetMqttServerOptionsBuilder.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using MQTTnet.Server;
 
 namespace MQTTnet.AspNetCore;

Source/MQTTnet.AspnetCore/BufferExtensions.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Runtime.InteropServices;
 
 namespace MQTTnet.AspNetCore;

Source/MQTTnet.AspnetCore/EndpointRouterExtensions.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Routing;
 

Source/MQTTnet.AspnetCore/MqttClientConnectionContextFactory.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using MQTTnet.Adapter;
 using MQTTnet.Diagnostics.Logger;
 using MQTTnet.Formatter;

Source/MQTTnet.AspnetCore/MqttConnectionContext.cs

@@ -2,13 +2,10 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Buffers;
 using System.IO.Pipelines;
 using System.Net;
 using System.Security.Cryptography.X509Certificates;
-using System.Threading;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Connections;
 using Microsoft.AspNetCore.Http.Connections.Features;
 using Microsoft.AspNetCore.Http.Features;

Source/MQTTnet.AspnetCore/MqttConnectionHandler.cs

@@ -2,8 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Connections;
 using Microsoft.AspNetCore.Connections.Features;
 using MQTTnet.Adapter;

Source/MQTTnet.AspnetCore/MqttHostedServer.cs

@@ -2,10 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Collections.Generic;
-using System.Threading;
-using System.Threading.Tasks;
 using Microsoft.Extensions.Hosting;
 using MQTTnet.Diagnostics.Logger;
 using MQTTnet.Server;

Source/MQTTnet.AspnetCore/MqttSubProtocolSelector.cs

@@ -2,9 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using Microsoft.AspNetCore.Http;
 
 namespace MQTTnet.AspNetCore;

Source/MQTTnet.AspnetCore/MqttWebSocketServerAdapter.cs

@@ -2,10 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Net;
 using System.Net.WebSockets;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Http;
 using MQTTnet.Adapter;
 using MQTTnet.Diagnostics.Logger;

Source/MQTTnet.AspnetCore/ReaderExtensions.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Buffers;
 using System.Runtime.InteropServices;
 using MQTTnet.Adapter;

Source/MQTTnet.AspnetCore/ServiceCollectionExtensions.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.DependencyInjection.Extensions;
 using Microsoft.Extensions.Hosting;

Source/MQTTnet.AspnetCore/SocketAwaitable.cs

@@ -2,13 +2,10 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Diagnostics;
 using System.IO.Pipelines;
 using System.Net.Sockets;
 using System.Runtime.CompilerServices;
-using System.Threading;
-using System.Threading.Tasks;
 
 namespace MQTTnet.AspNetCore;
 

Source/MQTTnet.AspnetCore/SocketConnection.cs

@@ -2,13 +2,9 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
-using System.Collections.Generic;
-using System.IO;
 using System.IO.Pipelines;
 using System.Net;
 using System.Net.Sockets;
-using System.Threading.Tasks;
 using Microsoft.AspNetCore.Connections;
 using Microsoft.AspNetCore.Http.Features;
 using MQTTnet.Exceptions;

Source/MQTTnet.AspnetCore/SocketReceiver.cs

@@ -2,7 +2,6 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.IO.Pipelines;
 using System.Net.Sockets;
 

Source/MQTTnet.AspnetCore/SocketSender.cs

@@ -2,9 +2,7 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-using System;
 using System.Buffers;
-using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO.Pipelines;
 using System.Net.Sockets;