code: public int deleteDurableFromRemote(String subName)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.entry(tc, "deleteDurableFromRemote", subName);
  
          int status = _pubSubRealization.deleteDurableFromRemote(subName);
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
              SibTr.exit(tc, "deleteDurableFromRemote", Integer.valueOf(status));
  
          return status;
      }
docs: Handle a remote request to delete a local durable subscription.
  
  @param subName The name of the durable subscription to delete.
  @return DurableConstants.STATUS_OK if the delete works,
  DurableConstants.STATUS_SUB_NOT_FOUND if no such subscription
  exists, DurableConstants.STATUS_SUB_CARDINALITY_ERROR if
  the subscription can't be deleted because there are attached
  consumers, or DurableConstants.STATUS_SUB_GENERAL_ERROR if an
  exception occurs while deleting the subscription.