[PRQ#51951] Orphan Request for arm-none-eabi-gcc73-linaro

MarsSeed [1] filed an orphan request for arm-none-eabi-gcc73-linaro [2]: Flagged out-of-date (2021-11-01). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/arm-none-eabi-gcc73-linaro/