Revert "Verify behavior when FGS uses existing notification"

Revert submission 14414063-fgs-defer-fixes

Reason for revert: b/187373264
Reverted Changes:
I081a3cc88:Don't defer FGS notification if it's already shown...
I083583550:Verify behavior when FGS uses existing notificatio...

Bug: 187373264

Change-Id: Ic8dd1e149115a1375a5a7814b65450fb75f5917e
(cherry picked from commit 4cfcf23543adcf3f4d6a792e393d0ce5b100da80)
3 files changed