fix stylecop issues

src/csharp/Grpc.Core.Tests/Internal/AsyncCallTest.cs

@@ -33,9 +33,10 @@
 
 using System;
 using System.Runtime.InteropServices;
+using System.Threading.Tasks;
+
 using Grpc.Core.Internal;
 using NUnit.Framework;
-using System.Threading.Tasks;
 
 namespace Grpc.Core.Internal.Tests
 {
@@ -87,38 +88,8 @@ namespace Grpc.Core.Internal.Tests
             Assert.AreEqual(StatusCode.Internal, ex.Status.StatusCode);
         }
 
-
-        //[Test]
-        //public void Duplex_ReceiveEarlyClose()
-        //{
-        //    asyncCall.StartDuplexStreamingCall();
-
-        //    fakeCall.ReceivedStatusOnClientHandler(true, new ClientSideStatus(new Status(StatusCode.DeadlineExceeded, ""), null));
-
-        //    // TODO: start read...
-        //    Assert.IsTrue(fakeCall.IsDisposed);
-        //}
-
-        //[Test]
-        //public void Duplex_ReceiveEarlyCloseWithRead()
-        //{
-        //    asyncCall.StartDuplexStreamingCall();
-
-        //    fakeCall.ReceivedStatusOnClientHandler(true, new ClientSideStatus(new Status(StatusCode.DeadlineExceeded, ""), null));
-
-        //    var taskSource = new AsyncCompletionTaskSource<string>();
-        //    asyncCall.StartReadMessage(taskSource.CompletionDelegate);
-
-        //    fakeCall.ReceivedMessageHandler(true, new byte[] { 1 } );
-
-        //    // TODO: start read...
-        //    Assert.IsTrue(fakeCall.IsDisposed);
-        //}
-        
-
         internal class FakeNativeCall : INativeCall
         {
-
             public UnaryResponseClientHandler UnaryResponseClientHandler
             {
                 get;
@@ -247,8 +218,5 @@ namespace Grpc.Core.Internal.Tests
                 IsDisposed = true;
             }
         }
-
     }
-
-    
 }

src/csharp/Grpc.Core.Tests/ResponseHeadersTest.cs

@@ -125,7 +125,7 @@ namespace Grpc.Core.Tests
             var responseHeaders = await call.ResponseHeadersAsync;
 
             Assert.AreEqual("ascii-header", responseHeaders[0].Key);
-            CollectionAssert.AreEqual(new [] { "PASS" }, await call.ResponseStream.ToListAsync());
+            CollectionAssert.AreEqual(new[] { "PASS" }, await call.ResponseStream.ToListAsync());
         }
 
         [Test]

src/csharp/Grpc.Core/GrpcEnvironment.cs

@@ -185,7 +185,6 @@ namespace Grpc.Core
             return Marshal.PtrToStringAnsi(ptr);
         }
 
-
         internal static void GrpcNativeInit()
         {
             grpcsharp_init();

src/csharp/Grpc.Core/Internal/AsyncCall.cs

@@ -344,7 +344,6 @@ namespace Grpc.Core.Internal
                 details.Method, details.Host, Timespec.FromDateTime(details.Options.Deadline.Value));
         }
 
-
         // Make sure that once cancellationToken for this call is cancelled, Cancel() will be called.
         private void RegisterCancellationCallback()
         {

src/csharp/Grpc.Core/Internal/INativeCall.cs

@@ -31,6 +31,7 @@
 #endregion
 
 using System;
+
 namespace Grpc.Core.Internal
 {
     internal delegate void UnaryResponseClientHandler(bool success, ClientSideStatus receivedStatus, byte[] receivedMessage, Metadata responseHeaders);