Remove the HostEventStub aggregate interface.

remoting/protocol/host_event_stub.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Interface for an object that handles input and clipboard events.
-
-#ifndef REMOTING_PROTOCOL_HOST_EVENT_STUB_H_
-#define REMOTING_PROTOCOL_HOST_EVENT_STUB_H_
-
-#include "base/basictypes.h"
-#include "remoting/protocol/clipboard_stub.h"
-#include "remoting/protocol/input_stub.h"
-
-namespace remoting {
-namespace protocol {
-
-class HostEventStub : public ClipboardStub, public InputStub {
- public:
-  HostEventStub() {}
-  virtual ~HostEventStub() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(HostEventStub);
-};
-
-}  // namespace protocol
-}  // namespace remoting
-
-#endif  // REMOTING_PROTOCOL_HOST_EVENT_STUB_H_