code: public void fireRemoveNotification (Iterator<RegistryListener<K, V>> listeners, K removeKey, V removeValue) {
          while ( listeners.hasNext() ) {
              listeners.next().onRemoveEntry(removeKey, removeValue);
          }
      }
docs: Fire notification of an entry that was just removed from the registry.
  
  @param removeKey key identifying the entry removed from the registry.
  @param removeValue value of the entry in the registry.