First round of dead file removal

experimental/visual_studio_plugin/src/NaClVsx.Package/Installation/PortSupplierRegistrationAttribute.cs

-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using Microsoft.VisualStudio.Shell;
-
-namespace Google.NaClVsx.Installation
-{
-  [AttributeUsage(AttributeTargets.Class, AllowMultiple = true)]
-  public sealed class PortSupplierRegistrationAttribute : RegistrationAttribute
-  {
-    public PortSupplierRegistrationAttribute(Type portSupplierType) {
-      portSupplierType_ = portSupplierType;
-    }
-
-    public Type PortSupplierType {
-      get { return portSupplierType_; }
-      set { portSupplierType_ = value; }
-    }
-
-    public string Name {
-      get { return name_; }
-      set { name_ = value; }
-    }
-
-    public bool DisallowUserPorts {
-      get { return disallowUserPorts_; }
-      set { disallowUserPorts_ = value; }
-    }
-
-    #region Overrides of RegistrationAttribute
-
-    public override void Register(RegistrationContext context) {
-      Key key = context.CreateKey(KeyName());
-      key.SetValue("CLSID", ClsIdString());
-      key.SetValue("DisallowUserEnteredPorts", disallowUserPorts_ ? 1 : 0);
-      key.SetValue("Name", name_);
-    }
-
-    public override void Unregister(RegistrationContext context) {
-      context.RemoveKey(KeyName());
-    }
-
-    #endregion
-
-    string ClsIdString() {
-      return PortSupplierType.GUID.ToString("B");
-    }
-
-    string KeyName()
-    {
-      return string.Format("AD7Metrics\\PortSupplier\\{0}", ClsIdString());
-    }
-
-    private Type portSupplierType_;
-    private string name_ = "[Port provider name goes here]";
-    private bool disallowUserPorts_ = false;
-  }
-}