ac/nir: remove bindless image atomic format check

PIPE_FORMAT_* is supposed to be used and a similar check will probably be
added to nir_validate soon anyway.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7275>
1 file changed