Since Mesa drivers are now version-locked to the loader, that means that
we never need to support a newer hardware driver than the loader, and thus
don't need to generate dynamic dispatch stubs. This is great news, given
that we don't test those paths, and it involved delightful features like
arrays of hex for code to be pasted into executable memory.
More code removal will follow, this is the first cut of "don't generate,
and DCE generation code".
Fixes: #9158
Acked-by: Marek Olšák <marek.olsak@amd.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23451>
