Paunch was deprecated in Ussuri and is now being retired, to be fully
replaced by the new tripleo-ansible role, tripleo_container_manage.
This patch:
- Removes common/container-puppet.py (was only useful when paunch is
enabled, since that script was converted to container_puppet_config
Ansible module in tripleo-ansible).
- Update all comments refering to paunch, and replace by
tripleo_container_manage.
- Deprecate EnablePaunch parameter.
- Remove paunch as python dependencies.
Depends-On: https://review.opendev.org/#/c/731545/
Change-Id: I9294677fa18a7efc61898a25103414c8191d8805