Remove mPublicSync. am: 94311aa902 am: c0f1bed8c5 am: 1a56f34c7c

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

Change-Id: Ie0ca3c2c7e38cb3c3823b975f565749e99cd8af5
tree: bc18d4850c9e2cdf9fa7caf9632433ccd46869c4
  1. tests/
  2. Tethering/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING