[PRQ#50624] Merge Request for lightdm-devel

MarsSeed [1] filed a request to merge lightdm-devel [2] into lightdm- git [3]: Upstream does not create development release tags anymore. It makes sense to keep only the VCS package. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/lightdm-devel/ [3] https://aur.archlinux.org/pkgbase/lightdm-git/