Merge "[DU04]Remove NetworkPolicyManagerInternal from NetworkStatsService" am: d15c37c0e0 am: c1e289ceaf am: f1a2f28e75 am: 9efe853815

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1934459

Change-Id: Icc2aef5cb876439b1e8fd01eca75ceeb1394aac3