[PRQ#70323] Deletion Request for python-gym-jsbsim-git

MarsSeed [1] filed a deletion request for python-gym-jsbsim-git [2]: Dead, abandoned, unused package from 2020; missing an already deleted dependency (python-gym). Upstream is unmaintained since 4 years ago. [a] [a]: https://github.com/Gor-Ren/gym-jsbsim [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/python-gym-jsbsim-git/