Revert "Allow package verifier to hide specific fgs notifications."

This reverts commit e49aa726.

Reason for revert: We've decided not to have this in the QPR.

Bug: 164440539
Change-Id: I72ca946f1a5be937b3f3bed746e4251fa9257891
Merged-In: I72ca946f1a5be937b3f3bed746e4251fa9257891