[api=sig][i18n][infra][tc] Cleaning up more defunct mailing lists

A quick audit of the mailing lists we host at lists.openstack.org turned up the following 11 which have had no new posts for at least three years now:

* openstack-api-consumers * openstack-de * openstack-el * openstack-i18n-fr * openstack-ir * openstack-personas * openstack-ru * openstack-sos * openstack-tw * openstack-vi * third-party-announce

I'd like to clean them up by removing their list configurations, but leaving any public archives intact. Are there any objections? Should any of the above have future messages redirected to a different list (though since they haven't had any for years, that's probably unnecessary)?