[arch-dev-public] Removal of lib32-libtxc_dxtn and libtxc_dxtn from repositories

mesa doesn't depend anymore on libtxc_dxtn and now these packages are completely useless. So lib32-libtxc_dxtn will be removed from multilib and libtxc_dxtn from extra. See https://bugs.archlinux.org/task/56660?dev=53660 https://lists.freedesktop.org/archives/mesa-dev/2017-October/171265.html -- Laurent Carlier http://www.archlinux.org