[PRQ#46293] Deletion Request for usd19

MarsSeed [1] filed a deletion request for usd19 [2]: Broken legacy version of usd, cannot be built. AUR has the functioning latest version: https://aur.archlinux.org/packages/usd Nothing depends on this old one. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/usd19/