[PRQ#43302] Deletion Request for liblsl-git

MarsSeed [1] filed a deletion request for liblsl-git [2]: Abandoned VCS pkg from 2019; one-time effort. Not needed: AUR has a maintained stable variant. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/liblsl-git/