Merge "Remove unimplemented callback of KUMCallback" into tm-qpr-dev am: 18636796

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19289532



Change-Id: I72c59f8f4723d82ac5a19e4b2e1751848a3dac3d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>