Remove @UnsupportedAppUsage annotations from generated code.

Revert back to using the greylist file for this code, since the annotations
would be lost next time the code is regenerated.

Bug: 110868826
Test: m

Merged-In: Ib245a2f1457ced34d5b1a3248161fa4a211ba5e9
Change-Id: Ib245a2f1457ced34d5b1a3248161fa4a211ba5e9