[PRQ#43598] Deletion Request for rpython

MarsSeed [1] filed a deletion request for rpython [2]: I recommend deleting this unused Python2 based old (2017) version of the internal restricted interpreter of the PyPy implementation. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/rpython/