code: public void deregisterForEvents(SIMPMessage msg)
    {
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "deregisterForEvents");
        
      msg.deregisterMessageEventListener(MessageEvents.POST_COMMIT_REMOVE, this);
      msg.deregisterMessageEventListener(MessageEvents.POST_ROLLBACK_REMOVE, this);
      msg.deregisterMessageEventListener(MessageEvents.POST_COMMIT_ADD, this);
      msg.deregisterMessageEventListener(MessageEvents.POST_ROLLBACK_ADD, this);
      
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "deregisterForEvents");
    }
docs: Method deregisterForEvents.
  <p>Message Events are no longer required by the PtoPMessageItemStream, so
  deregister for them.</p>
  @param msg