code: def delete_dcnm_out_nwk(self, tenant_id, fw_dict, is_fw_virt=False):
          
          tenant_name = fw_dict.get('tenant_name')
          ret = self._delete_service_nwk(tenant_id, tenant_name, 'out')
          if ret:
              res = fw_const.DCNM_OUT_NETWORK_DEL_SUCCESS
              LOG.info("out Service network deleted for tenant %s",
                       tenant_id)
          else:
              res = fw_const.DCNM_OUT_NETWORK_DEL_FAIL
              LOG.info("out Service network deleted failed for tenant %s",
                       tenant_id)
          self.update_fw_db_result(tenant_id, dcnm_status=res)
          return ret
docs: Delete the DCNM OUT network and update the result.