public void removeChannelMap(ChannelMap channelMap){
  if (mChannelMaps.contains(channelMap)) {
    int index=mChannelMaps.indexOf(channelMap);
    mChannelMaps.remove(channelMap);
    fireIntervalRemoved(this,index,index);
    broadcast(new ChannelMapEvent(channelMap,Event.DELETE));
  }
}

public void removeChannelMap ( ChannelMap channelMap ) { if ( mChannelMaps . contains ( channelMap ) ) { int index = mChannelMaps . indexOf ( channelMap ) ; mChannelMaps . remove ( channelMap ) ; fireIntervalRemoved ( this , index , index ) ; broadcast ( new ChannelMapEvent ( channelMap , Event . DELETE ) ) ; } }
removes the channel map from this model
