Plugins cms-static and cms-colord were deprecated with "compositor:
deprecate cms-static and cms-colord plugins", and the promise was that
we'd delete them if no one complained.
They were deprecated 2 years ago, and no one bothered. So it's about
time to delete them.
See https://gitlab.freedesktop.org/wayland/weston/-/issues/634.
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>