[PRQ#40906] Deletion Request for flake

FabioLolix [1] filed a deletion request for flake [2]: Last upstream release was on 2007-08-05. Reported failing to build on 2019-02 and still fails. [1] https://aur.archlinux.org/account/FabioLolix/ [2] https://aur.archlinux.org/pkgbase/flake/