Remove dead code, mostly DataStateTracker.

(cherry picked from AOSP commit 4c12c31336abfceaab1a00da760848bf0ab4c6a1)

Change-Id: I18c44cd08dfb51e02a96d0b726e9af1db21e3058
4 files changed
tree: 8c69713ea96a0d6255f0f9e10a020f120e63718f
  1. core/
  2. services/
  3. tests/