[PRQ#43690] Deletion Request for openteacher

MarsSeed [1] filed a deletion request for openteacher [2]: Broken due to missing Python2 dependencies. Last updated in 2017. Maybe it's time to retire this abandoned software from AUR. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/openteacher/