[PRQ#43985] Deletion Request for ar-sdk3-git

MarsSeed [1] filed a deletion request for ar-sdk3-git [2]: Development discontinued since 2019. [a] No need for this VCS package anymore. [a]: https://github.com/Parrot-Developers/arsdk_manifests [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ar-sdk3-git/