[PRQ#52508] Deletion Request for mate-polkit-gtk2

MarsSeed [1] filed a deletion request for mate-polkit-gtk2 [2]: Unneeded legacy lib from 2017. MATE is based on Gtk3 since 2017. The only possible consumer of this package, mate-session-manager-gtk2 (also from 2017) fails to build from source, and is submitted for deletion (PRQ#52452). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/mate-polkit-gtk2/