public void removeDragEventHandlers(){
  node.removeEventHandler(TouchEvent.ANY,touchHandler);
  node.removeEventHandler(MouseEvent.ANY,mouseHandler);
}

public void removeDragEventHandlers ( ) { node . removeEventHandler ( TouchEvent . ANY , touchHandler ) ; node . removeEventHandler ( MouseEvent . ANY , mouseHandler ) ; }
make the attached node stop acting on drag actions by removing drag event handlers
