public void removeSelectionChangeListener(final SelectionChangeListener listener){
  checkWidget();
  if (listener == null) {
    SWT.error(SWT.ERROR_NULL_ARGUMENT);
  }
  if (selectionChangeListeners == null) {
    return;
  }
  selectionChangeListeners.remove(listener);
}

public void removeSelectionChangeListener ( final SelectionChangeListener listener ) { checkWidget ( ) ; if ( listener == null ) { SWT . error ( SWT . ERROR_NULL_ARGUMENT ) ; } if ( selectionChangeListeners == null ) { return ; } selectionChangeListeners . remove ( listener ) ; }
removes the listener from the collection of listeners who will be notified when the user changes the receiver ' s selection .
