Merge "Revert "Add hidden API getDataSaverViaCmFlag() for CTS"" into main am: 0a4ba7bfca am: a2e1f6988e

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2836418

Change-Id: Ie17f3aba8cf86998060fa1a459753be6767fcbec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>