code: public synchronized void removeHandler(String handlerId) {
  		handlerEventMap.remove(handlerId);
  		Tr.event(tc, "Removed Asynchronous Handler: " + handlerId);
  		if (handlerEventMap.isEmpty()) {
  			ringBuffer = null;
  			Tr.event(tc, "ringBuffer for this BufferManagerImpl has now been set to null");
  		}
  	}
docs: Remove the given handlerId from this BufferManager
  
  @param handlerId handlerId to remove