LothaireFR [1] filed a deletion request for teams-for-linux [2]: This is an unofficial client. Since then we got an official Teams version that's already on AUR (normal and insiders version)... So please remove that.
[1] https://aur.archlinux.org/account/LothaireFR/ [2] https://aur.archlinux.org/pkgbase/teams-for-linux/
