MarsSeed [1] filed a deletion request for connman-gtk-git [2]: Last release was in 2015, last commit added in 2018 to the VCS.
The GitHub source repo has been archived (made read-only). So I think it's safe to delete this package at this point. Nothing depends on it. There are working GUI frontends for ConnMan so no big loss here. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/connman-gtk-git/
