Merge "Remove libstatsmetadata" into rvc-dev am: 2bbfa23bf1 am: d6ddca78ba am: 0269d364dc

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11923902

Change-Id: I179cc6b2145254c921489fae5b646bb7eb5c2bfa
tree: 02370b92e495b8cf7f54bedc8731909201aa7093
  1. stats/