Cherry-pick: Remove WifiWatchdogStateMachine am: c083e644c8  -s ours am: e36857f9d1 am: b25cf4a29f
am: 34a58c3e41

Change-Id: I1b822476ca0517614df56d5332a0d0f3d5fdb6d8
tree: b006848457786ca8f6ba20a25e393e47da8e1cb6
  1. libwifi_hal/
  2. libwifi_system/
  3. service/
  4. tests/