Publishing is now only done on developer.openstack.org and not anymore
on docs.openstack.org:
* Remove api-site-tox-doc-publishdocs
* Create new job openstack-api-ref-publish-lang to publish translated
documents to developer.o.o.
* Remove api-site-tox-doc-publishlang job (published translated
documents to docs.o.o). For this, we need to replace the
openstack-doc-translation template with individual jobs.
Change-Id: Id9d9c378c29e5601fe994b46ede19ddae61cfb53
1f0c37654a