First round of dead file removal

experimental/visual_studio_plugin/src/MsAd7.BaseImpl/Engine.cs

-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.Linq;
-using System.Text;
-using Microsoft.VisualStudio.Debugger.Interop;
-
-namespace Google.MsAd7.BaseImpl
-{
-  class Engine : IDebugEngine2
-  {
-    public int EnumPrograms(out IEnumDebugPrograms2 ppEnum) {
-      Debug.WriteLine("Engine.EnumPrograms");
-
-      throw new NotImplementedException();
-    }
-
-    public int Attach(IDebugProgram2[] rgpPrograms, IDebugProgramNode2[] rgpProgramNodes, uint celtPrograms, IDebugEventCallback2 pCallback, enum_ATTACH_REASON dwReason) {
-      Debug.WriteLine("Engine.Attach");
-
-      throw new NotImplementedException();
-    }
-
-    public int CreatePendingBreakpoint(IDebugBreakpointRequest2 pBPRequest, out IDebugPendingBreakpoint2 ppPendingBP) {
-      Debug.WriteLine("Engine.CreatePendingBreakpoint");
-
-      throw new NotImplementedException();
-    }
-
-    public int SetException(EXCEPTION_INFO[] pException) {
-      Debug.WriteLine("Engine.SetException");
-
-      throw new NotImplementedException();
-    }
-
-    public int RemoveSetException(EXCEPTION_INFO[] pException) {
-      Debug.WriteLine("Engine.RemoveSetException");
-
-      throw new NotImplementedException();
-    }
-
-    public int RemoveAllSetExceptions(ref Guid guidType) {
-      Debug.WriteLine("Engine.RemoveAllSetExceptions");
-
-      throw new NotImplementedException();
-    }
-
-    public int GetEngineId(out Guid pguidEngine) {
-      Debug.WriteLine("Engine.GetEngineId");
-
-      throw new NotImplementedException();
-    }
-
-    public int DestroyProgram(IDebugProgram2 pProgram) {
-      Debug.WriteLine("Engine.DestroyProgram");
-
-      throw new NotImplementedException();
-    }
-
-    public int ContinueFromSynchronousEvent(IDebugEvent2 pEvent) {
-      Debug.WriteLine("Engine.ContinueFromSynchronousEvent");
-
-      throw new NotImplementedException();
-    }
-
-    public int SetLocale(ushort wLangID) {
-      Debug.WriteLine("Engine.SetLocale");
-
-      throw new NotImplementedException();
-    }
-
-    public int SetRegistryRoot(string pszRegistryRoot) {
-      Debug.WriteLine("Engine.SetRegistryRoot");
-
-      throw new NotImplementedException();
-    }
-
-    public int SetMetric(string pszMetric, object varValue) {
-      Debug.WriteLine("Engine.SetMetric");
-
-      throw new NotImplementedException();
-    }
-
-    public int CauseBreak() {
-      Debug.WriteLine("Engine.CauseBreak");
-
-      throw new NotImplementedException();
-    }
-  }
-}