Merge "Revert "Kill process if it's cached & idle and in forced-app-standby mode"" into sc-dev am: 160fb766 am: 690317b9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15131779

Change-Id: If5bbe857a3449403e2bb295623c7185c078bf041