[aur-general] Removal request -- osc-build-archlinux

Hi, osc-build-archlinux [1] should be deleted: it is outdated; more than that, it is not needed anymore, since support for this feature is included upstream now (see comments in the package). Anyway, obs-build-git [2] is an up-to-date version of it. [1]: https://aur.archlinux.org/packages/osc-build-archlinux/ [2]: https://aur.archlinux.org/packages/obs-build-git/