[PRQ#43597] Deletion Request for postgresql-src-beta

MarsSeed [1] filed a deletion request for postgresql-src-beta [2]: This beta package is 18 months older than repo's stable postgresql. Better to delete it, as there is seemingly no interest in using or maintaining it. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/postgresql-src-beta/