Stop building the system-image zip am: dd5a6d5c95 am: d183bc806a

Original change: https://googleplex-android-review.googlesource.com/c/platform/development/+/18599346

Change-Id: I8c8ab5f2147c864dfd0ee7f799797b5b6f1b8295
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>