Merge "Remove system-ext from test." into main am: 0acfa7cf64

Original change: https://android-review.googlesource.com/c/platform/build/+/3288494

Change-Id: I3c4d24844c0b1a64893a305a52dc46f2216872f0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>