Remove unused usings (#2217)

Source/MQTTnet.Benchmarks/AssemblyInfo.cs

@@ -1,3 +1 @@
-using Microsoft.VisualStudio.TestTools.UnitTesting;
-
 [assembly: DoNotParallelize]

Source/MQTTnet.Benchmarks/AsyncLockBenchmark.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.Threading;
-using System.Threading.Tasks;
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;
 using MQTTnet.Internal;

Source/MQTTnet.Benchmarks/ChannelAdapterBenchmark.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.IO;
-using System.Threading;
 using BenchmarkDotNet.Attributes;
 using MQTTnet.Adapter;
 using MQTTnet.Diagnostics.Logger;

Source/MQTTnet.Benchmarks/MemoryCopyBenchmark.cs

@@ -1,6 +1,5 @@
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;
-using System;
 
 
 namespace MQTTnet.Benchmarks;

Source/MQTTnet.Benchmarks/MqttBufferReaderBenchmark.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.Text;
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;

Source/MQTTnet.Benchmarks/MqttPacketReaderWriterBenchmark.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 BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;
 using MQTTnet.Formatter;

Source/MQTTnet.Benchmarks/Program.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 BenchmarkDotNet.Running;
 
 namespace MQTTnet.Benchmarks;

Source/MQTTnet.Benchmarks/ReaderExtensionsBenchmark.cs

@@ -4,9 +4,7 @@ using MQTTnet.AspNetCore;
 using MQTTnet.Exceptions;
 using MQTTnet.Formatter;
 using System.Buffers;
-using System.IO;
 using System.IO.Pipelines;
-using System.Threading.Tasks;
 
 namespace MQTTnet.Benchmarks;
 

Source/MQTTnet.Benchmarks/RoundtripProcessingBenchmark.cs

@@ -1,7 +1,6 @@
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;
 using MQTTnet.Tests.Mockups;
-using MQTTnet.Tests.Server;
 
 namespace MQTTnet.Benchmarks;
 

Source/MQTTnet.Benchmarks/SerializerBenchmark.cs

@@ -4,10 +4,7 @@
 
 using BenchmarkDotNet.Attributes;
 using MQTTnet.Packets;
-using System;
 using System.Security.Cryptography.X509Certificates;
-using System.Threading;
-using System.Threading.Tasks;
 using MQTTnet.Adapter;
 using MQTTnet.Channel;
 using MQTTnet.Formatter;

Source/MQTTnet.Benchmarks/ServerProcessingBenchmark.cs

@@ -5,7 +5,6 @@
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;
 using MQTTnet.Tests.Mockups;
-using MQTTnet.Tests.Server;
 
 namespace MQTTnet.Benchmarks;
 

Source/MQTTnet.Benchmarks/SubscribeBenchmark.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.Collections.Generic;
-using System.Linq;
 using BenchmarkDotNet.Attributes;
 using MQTTnet.Server;
 

Source/MQTTnet.Benchmarks/TcpPipesBenchmark.cs

@@ -5,8 +5,6 @@
 using System.IO.Pipelines;
 using System.Net;
 using System.Net.Sockets;
-using System.Threading;
-using System.Threading.Tasks;
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Jobs;
 using MQTTnet.AspNetCore;

Source/MQTTnet.Benchmarks/TopicGenerator.cs

@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-
 namespace MQTTnet.Benchmarks;
 
 public class TopicGenerator

Source/MQTTnet.Benchmarks/UnsubscribeBenchmark.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.Collections.Generic;
-using System.Linq;
 using BenchmarkDotNet.Attributes;
 using MQTTnet.Server;