[RESTRICT AUTOMERGE] Revert "Persist destroyed staged sessions until they are cleaned up" am: 07d74c4c28

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19092213

Change-Id: If22465789761ee4d6077a84b5d570f4392fedbb2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>