Revert "assemble_vintf: getFlagIfUnset harder errors"

This reverts commit a9f4afc6fd6475fee555398c39e229fbd52c958b.

Exempt-From-Owner-Approval:


Reason for revert: broken aosp_* and sdk_* targets
b/136028254

Change-Id: I53ab962ab749fb6de4a59601a6981d3da3ed73c7
1 file changed