Remove mPublicSync. am: 94311aa902 am: c0f1bed8c5

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1678387

Change-Id: Ie173e954e3ed27aebb73ebe2baefe3eff1c52556
tree: 33f39e2acbc9b76dcc179740c2bb2849628e176a
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING