[PRQ#49538] Deletion Request for keira3

MarsSeed [1] filed a deletion request for keira3 [2]: Unmaintained, unused OOD foreign binary based package from 2021 for an open-source application. There is no evidence that this is in much demand on AUR. Better to delete. Upstream publishes AppImage and snap binary releases, so anyone can easily install the latest version, and can even manage those installations and follow updates by using format-specific package managers. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/keira3/