Revert "Guard new APIs with __builtin_available"

Revert submission 25624362-persistable-bundle-hack

Reason for revert: Likely culprit for b/317912559

Reverted changes: /q/submissionid:25624362-persistable-bundle-hack

Change-Id: Ifa4d8c849b4f1a7a8ade6592c073dc6c81d0a85c
1 file changed