[PRQ#63295] Deletion Request for sibt-git

MarsSeed [1] filed a deletion request for sibt-git [2]: PKGBUILD execution is broken. Upstream abandoned for 6 years. [a] [a]: https://github.com/pid0/sibt [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/sibt-git/