transform: Remove some leftovers in __all__

5c9d7af removed a bunch of deprecated functions, but forgot to remove
two more names from __all__.

Yes, I know * imports are a bad idea, but we have an internal app that
uses them. I've removed the * imports, but figured I might as well fix
upstream.
Merge pull request #1134 from magcius/fix-star-imports

transform: Remove some leftovers in __all__