[reno] Stop publishing release notes
[reno] Stop publishing release notes

Since we copy all release notes to the integrated repo there is not need
in publishing release notes for each repository. We should only verify their
validity and linting.


Change-Id: I27f0676a07ed7876ed91f588c3a17a15eddb4e96
openstack/openstack-ansible-rabbitmq_server,openstack/openstack-ansible-rabbitmq_server