Support for DRI1 is not implemented, but who still uses that? Reviewed-by: Adam Jackson <ajax@redhat.com> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Signed-off-by: Martin Peres <martin.peres@mupuf.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7212>