[aur-general] Please merge/delete cairo-xcb-ubuntu

Please delete cairo-xcb-ubuntu [1] as the maintainer has made a new package cairo-ubuntu-xcb [2]. Or you can merge them I suppose. [1] https://aur.archlinux.org/packages.php?ID=44663 [2] https://aur.archlinux.org/packages.php?ID=52780