archbuild: only use base-devel to new chroot

Since TODO [1] which state:
It would be good for base-devel to install everything needed for a build chroot
we can remove base and sudo

[1] https://www.archlinux.org/todo/add-more-to-base-devel/



Signed-off-by: Sébastien Luttringer <seblu@seblu.net>
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>