[PRQ#42335] Deletion Request for playx-git

MarsSeed [1] filed a deletion request for playx-git [2]: Discontinued since 2020, repo archived since 2021. [a] Not needed anymore. There's still a stable AUR/playx package. [a]: https://github.com/NISH1001/playx [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/playx-git/