Remove ibus_panel_service.cc and related files.

chromeos/dbus/ibus/mock_ibus_panel_service.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.
-
-#ifndef CHROMEOS_DBUS_IBUS_MOCK_IBUS_PANEL_SERVICE_H_
-#define CHROMEOS_DBUS_IBUS_MOCK_IBUS_PANEL_SERVICE_H_
-
-#include "chromeos/dbus/ibus/ibus_panel_service.h"
-
-namespace chromeos {
-
-class MockIBusPanelService : public IBusPanelService {
- public:
-  MockIBusPanelService();
-  virtual ~MockIBusPanelService();
-
-  // IBusPanelService overrides.
-  virtual void SetUpCandidateWindowHandler(
-      IBusPanelCandidateWindowHandlerInterface* handler) OVERRIDE;
-  virtual void SetUpPropertyHandler(
-      IBusPanelPropertyHandlerInterface* handler) OVERRIDE;
-  virtual void CandidateClicked(uint32 index,
-                                ibus::IBusMouseButton button,
-                                uint32 state) OVERRIDE;
-  virtual void CursorUp() OVERRIDE;
-  virtual void CursorDown() OVERRIDE;
-  virtual void PageUp() OVERRIDE;
-  virtual void PageDown() OVERRIDE;
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_DBUS_IBUS_MOCK_IBUS_PANEL_SERVICE_H_