code: public boolean deleteChannel(String ccid) {
          log.info("DELETE channel for cluster controller: " + ccid);
          Broadcaster broadcaster = BroadcasterFactory.getDefault().lookup(Broadcaster.class, ccid, false);
          if (broadcaster == null) {
              return false;
          }
  
          BroadcasterFactory.getDefault().remove(ccid);
  
          broadcaster.resumeAll();
          broadcaster.destroy();
          // broadcaster.getBroadcasterConfig().forceDestroy();
          return true;
      }
docs: Deletes a channel from the broadcaster.
  
  @param ccid
  the channel to delete
  @return <code>true</code> if the channel existed and could be deleted,
  <code>false</code> if there was no channel for the given ID and
  therefore could not be deleted.