Remove mouse events from Sky

sky/engine/core/events/Event.cpp

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 100 matching lines @@
 bool Event::hasInterface(const AtomicString& name) const
 {
     return interfaceName() == name;
 }
 
 bool Event::isUIEvent() const
 {
     return false;
 }
 
-bool Event::isMouseEvent() const
-{
-    return false;
-}
-
 bool Event::isFocusEvent() const
 {
     return false;
 }
 
 bool Event::isKeyboardEvent() const
 {
     return false;
 }
 
 bool Event::isTouchEvent() const
 {
     return false;
 }
 
 bool Event::isGestureEvent() const
 {
     return false;
 }
 
-bool Event::isWheelEvent() const
-{
-    return false;
-}
-
 bool Event::isDragEvent() const
 {
     return false;
 }
 
 bool Event::isClipboardEvent() const
 {
     return false;
 }
 
@@ skipping 55 matching lines @@
     }
     return StaticNodeList::createEmpty();
 }
 
 EventTarget* Event::currentTarget() const
 {
     return m_currentTarget.get();
 }
 
 } // namespace blink