[PRQ#49649] Deletion Request for python-os-api-ref

MarsSeed [1] filed a deletion request for python-os-api-ref [2]: Cleanup of unused, unmaintained OpenStack server Python module. Submitter completely MIA since 2022-11. This one is broken because of a missing checkdepend. OpenStack maintains hundreds of Python components, with frequent updates. Better drop all related abandoned packages from AUR and let people install them when needed from PyPI. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-os-api-ref/