Revert "Bluetooth: Fix to update mTetherOn with proper value."
This reverts commit 649ef294.
Revert "Bluetooth: Added a property to have the tethering setting persist"
This reverts commit 205cd5db.
This is is a combination of 2 commits.
Changed the implementation via
Change-Id: Ifbe1bc4909d259e7e8e6e9801b28d974f38c5354