oech3 [1] filed a deletion request for xlibre-xf86-video-vesa [2]: Duplicated. Answer to question of submitter:

There's no 'delete' button in the AUR web interface; what's the procedure for this?

Deletion requests from submitter immediately after submitting is automatically accepted. But xlibre-server-* would not. Needed to wait TU's reaction. [1] https://aur.archlinux.org/account/oech3/ [2] https://aur.archlinux.org/pkgbase/xlibre-xf86-video-vesa/