code: void removeConsumer(ConsumerSessionImpl consumer) {
          if (TraceComponent.isAnyTracingEnabled()
              && tc.isEntryEnabled())
              SibTr.entry(tc, "removeConsumer", consumer);
  
          _consumerList.remove(consumer);
  
          if (TraceComponent.isAnyTracingEnabled()
              && tc.isEntryEnabled())
              SibTr.exit(tc, "removeConsumer");
      }
docs: Removes a consumer from the list of all consumers on this messaging
  engine.
  
  @param consumer