Remove the magic from `Any`

The Any type used to be very highly magical: a poly-kinded type in a mono-kinded world. Then it became only normally magical: a datatype with a return kind of k (instead of *). Then it became only a bit magical: a closed type family with no equations. Now that we have non-magical empty closed type families, I believe that we can remove the last bit of magic and just define

type family Any :: k where { }

somewhere (GHC.Types?), wire it in (like, e.g., Bool), and be done with it.

Objections?