radv: do not use the common entrypoint for the Metro Exodus layer

radv: do not use the common entrypoint for the Metro Exodus layer

This is incorrect, it will calls the function recursively.

It seems there is random build failures with common runtime code
and MSVC but that's a different issue.

Closes: #5815
Fixes: 46c59e8fd69 ("radv: Remove dependencies on vk_common entrypoints.")
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14374>