Merge "Revert "Cleaned up some slot logic"" am: b2fdbef4 am: 475ffb84 am: 096fdad2

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2520539



Change-Id: Ibe8e678fcaa256e91b084f434060ac4beefe36e9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>