Revert "Ignore UnbundledChooserActivityTest" am: 468a581905

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/IntentResolver/+/19490738

Change-Id: Ia13631adfe03e3f36706e16d359e4f894bd3df7f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>