Use clearAll() of NetworkCapabilities.Builder instead am: 1345717eec am: 2b197c94df

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1644468

Change-Id: I5b5dcf0b5acede05cc2a9b5ad8458ba2d1285cee
tree: 3bf9c04249d32604894013eeb9d6cc42f7a9eb8b
  1. service-t/
  2. tests/