[PRQ#49589] Deletion Request for python-marshmallow2

MarsSeed [1] filed a deletion request for python-marshmallow2 [2]: Abandoned, unneeded legacy version from 2019. Repo carries the current release, and only that has reverse dependencies. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-marshmallow2/