dvzrv [1] filed a deletion request for jack2-no-dbus-git [2]:
This package is superseeded by the functionality provided in jack2-git (a systemd service is included and the jackd executable is availabe as default).
[1] https://aur.archlinux.org/account/dvzrv/ [2] https://aur.archlinux.org/pkgbase/jack2-no-dbus-git/