Revert "THRIFT-3000 .NET implementation has trouble with mixed IP modes"

This reverts commit 018c1b8f77e7d69da61014437d5f04fedbaad81d.
diff --git a/lib/csharp/src/Transport/TTLSServerSocket.cs b/lib/csharp/src/Transport/TTLSServerSocket.cs
index e56c66c..631a593 100644
--- a/lib/csharp/src/Transport/TTLSServerSocket.cs
+++ b/lib/csharp/src/Transport/TTLSServerSocket.cs
@@ -115,8 +115,8 @@
             try
             {
                 // Create server socket
-                this.server = TSocketVersionizer.CreateTcpListener(port);
-                this.server.Server.NoDelay = true;
+                server = new TcpListener(System.Net.IPAddress.Any, this.port);
+                server.Server.NoDelay = true;
             }
             catch (Exception)
             {