[PATCH 1/2] drm/panfrost: Remove features meant for userspace

[Alyssa Rosenzweig]

> (although it's a good thing kbase never did this cleanup - it's a useful
> source of public information ;) )

Haha, yes. Actually, kbase did do the clean up recently (Valhall era
kbase, I guess). To be fair, I still don't know what some of these were,
like "T7xx pairing rules"... Presumably something dreadfully
Midgard-compiler specific.