wifi: mac80211: remove outdated comments

These comments are no longer correct, it's a wiphy work now
so it will go away immediately when canceled.

Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240506211422.68bc10efbd8a.If80f43f4c8b9db1f5266f70d93a805f8c7463fe2@changeid


Signed-off-by: Johannes Berg <johannes.berg@intel.com>