code: public void deregisterLink()
    { 
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.entry(tc, "deregisterLink");
      //Deregister the link with TRM
      deregisterDestination();    
      // Tell TRM that the link should be undefined 
      if (TraceComponent.isAnyTracingEnabled() && tc.isDebugEnabled())
        SibTr.debug(tc, "Deregister MQLink: " + getUuid() + ", with mqLinkManager");       
      _mqLinkManager.undefine(getUuid());
  
      if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
        SibTr.exit(tc, "deregisterLink");
    }
docs: De-registers the link from WLM
  @throws SIResourceException