[PRQ#48133] Deletion Request for spice-xpi

MarsSeed [1] filed a deletion request for spice-xpi [2]: Discontinued since 2015 [a], not needed anymore. [a]: https://cgit.freedesktop.org/spice/spice-xpi [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/spice-xpi/