Merge "Remove unused constant." into udc-dev am: d5678fa6 am: 89698979

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22338183



Change-Id: Iea140a8ebf21c7db89c60d0fb13028b78a07cdad
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>