With #7421 having landed, there is really not much use for the stmt_html output any more.

Ordinarily I'd say we should deprecate it, but (1) it will be hard to emit useful deprecation warnings for all use cases, and (2) I don't recall seeing a single use of it inside Google for several years now -- I wouldn't be surprised if the same is true externally.

So, taking a straw poll here -- does it make more sense to just rip off the band-aid, so to speak, and remove it entirely for Halide 16?