First round of dead file removal

experimental/visual_studio_plugin/src/NaClVsx.Package/DebugSupport/NaClPortSupplier.cs

-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Runtime.InteropServices;
-using System.Text;
-using Google.MsAd7.BaseImpl;
-using Microsoft.VisualStudio.Debugger.Interop;
-
-namespace Google.NaClVsx.DebugSupport
-{
-  [Guid(kClsId)]
-  [ComVisible(true)]
-  [ClassInterface(ClassInterfaceType.None)]
-  sealed class NaClPortSupplier : PortSupplier
-  {
-    public const string kClsId =
-        "19F7B834-0503-42cd-AEB7-93B69071FA05";
-
-
-    #region Overrides of PortSupplier
-
-    public NaClPortSupplier()
-      : base("Native Client (NaCl)",
-             "Connects to Native Client executables (.nexe) via the gdb remote serial protocol.") {
-      IDebugPort2 p;
-      AddPort(new PortRequest("127.0.0.1:4014"), out p);
-    }
-
-    protected override Port CreatePort(IDebugPortRequest2 rq) {
-      string portname;
-      rq.GetPortName(out portname);
-      return new NaClPort(this, rq, portname);
-    }
-
-    #endregion
-  }
-}