[PRQ#49546] Deletion Request for drush-config-extra-git

MarsSeed [1] filed a deletion request for drush-config-extra-git [2]: Upstream discontinued since 2018, repo got archived in 2020. [a] Drush as a system-installable package is also defunct since years (see deletion request PRQ#49518 for 'drush' for details). [a]: https://github.com/drush-ops/config-extra [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/drush-config-extra-git/