Clean up

Author: JamesNK

src/Servers/Kestrel/Transport.NamedPipes/src/CreateNamedPipeServerStreamContext.cs

@@ -1,9 +1,8 @@
-// Licensed to the .NET Foundation under one or more agreements.
+// Licensed to the .NET Foundation under one or more agreements.
 // The .NET Foundation licenses this file to you under the MIT license.
 
 using System.IO.Pipes;
 using Microsoft.AspNetCore.Connections;
-using PipeOptions = System.IO.Pipes.PipeOptions;
 
 namespace Microsoft.AspNetCore.Server.Kestrel.Transport.NamedPipes;