This repo is now testing only with Python 3, so let's make
a few cleanups:
- Remove python 2.7 stanza from setup.py
- Add requires on python >= 3.6 to setup.cfg so that pypi and pip
know about the requirement
- Remove obsolete sections from setup.cfg
- Cleanup doc/source/conf.py to remove now obsolete content.
Change-Id: I622c9f10d0caf5b41f662e685998143ed76e05b6
openstack-dev was decomissioned this night in https://review.openstack.org/621258
Update openstack-dev to openstack-discuss
Change-Id: I27cbdc3418fc79b4aefa1f86a68b1de9e37f3207