MarsSeed [1] filed a deletion request for ros-melodic-openni2-launch [2]: Orphan legacy ROS (Robot Operating System) package.
The project uses AUR as their primary repo, then just disown their unsupported, deprecated packages and leave them here indefinitely. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/ros-melodic-openni2-launch/
