code: public boolean removeOnItemTouchListener(final OnItemTouchListener listener) {
          boolean removed = mItemTouchListeners.remove(listener);
          Log.d(Log.SUBSYSTEM.LAYOUT, TAG, "removeOnItemTouchListener listener %s added = %b", listener, removed);
          return removed;
      }
docs: Remove a previously added @linkplain #addOnItemTouchListener(OnItemTouchListener)}
  registered} touch notification {@linkplain OnItemTouchListener listener}.
  
  @param listener
  An implementation of {@link OnItemTouchListener}
  @return {@code true} if the listener was successfully unregistered,
  {@code false} if the specified listener was not previously
  registered with this object.