We are getting network trunk deletion issues on the NFV cloud, log; the workaround is to remove the registry directly from the DB, like the following steps:

$ DB_CONTAINER=`sudo podman ps | grep galera | awk '{ print $1 }'`
$ sudo podman exec -it $DB_CONTAINER mysql -e "DELETE FROM ovs_neutron.trunks WHERE id='${TRUNK_ID}';"

There is an open bug; however, this issue has appeared since OSP 13.