Merge "Cleanup dream preview complication." into tm-dev am: b6918681

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17731951



Change-Id: Ib8f4e4a725e5d71ac56c056281a2d491cffd5316
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>