Remove unnecessary partition re-maps am: ab15bebf5b

Original change: https://android-review.googlesource.com/c/platform/system/update_engine/+/2328138

Change-Id: I7861d43da408a9ffe86d92ceed7fdcf933788c48
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>