Alyssa Rosenzweig authored Mar 30, 2023 and Marge Bot committed Mar 31, 2023

We dropped support for hardware macOS drivers in afe134a4

 ("asahi: Drop macOS
backend"), so drop the corresponding documentation. Layered and software drivers
are still supported on macOS for better or worse, so the main "Notes on macOS"
page can stay I think.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <!22213>