Merge "Don't attach pipeline to group expansion mgr." into udc-dev am: d77e69686b am: e99755995c am: 16bc86ac26

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24148304

Change-Id: I6c6495e57893cb9d1dd6f22898b9444971c7750a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>