[PRQ#50083] Deletion Request for python-plumb

MarsSeed [1] filed a deletion request for python-plumb [2]: Broken, but unneeded Python library package. Upstream seems to have abandoned it since 2018 [a], and there's no source code repo or project home page linked from the PyPI entry. Safe to delete, as nothing depends on it. [a]: https://pypi.org/project/plumb/ [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-plumb/