Undo accidental changes to build-prebuilts.sh am: 78f8c5348d am: b993fd5f10

Original change: https://android-review.googlesource.com/c/platform/prebuilts/build-tools/+/2223538

Change-Id: I97d90b88365434f2d7554822b33c657d2bfec337
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>