[PRQ#55060] Deletion Request for pencil-v2

MarsSeed [1] filed a deletion request for pencil-v2 [2]: Dependency xulrunner has been unbuildable for the last 2.5+ years. Pencil v2 is deprecated and discontinued since 2017. [a] Pencil v3 is developed in a separate repo. [b] Not useful to keeo this dead package. [a]: https://github.com/prikhi/pencil [b]: https://github.com/evolus/pencil [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/pencil-v2/