Clean up references to lists.openstack.org other than as a virtual
host on the new lists01.opendev.org Mailman v3 server. Update a few
stale references to the old openstack-infra mailing list (and
accompanying stale references to the OpenStack Foundation and
OpenStack Infra team). Update our mailing list service documentation
to reflect the new system rather than the old one. Once this change
merges, we can create an archival image of the old server and delete
it (as well as removing it from our emergency skip list for
Ansible).
Side note, the lists.openstack.org server will be 11.5 years old on
November 1, created 2012-05-01 21:14:53 UTC. Farewell, old friend!
Change-Id: I54eddbaaddc7c88bdea8a1dbc88f27108c223239
cab53d10ac