Remove Bluetooth tethering settings screen.

Remove obsolete Bluetooth tethering settings screen. BT tethering can
be turned on and off, but the connection must be initiated by the
remote device. For reverse tethering, there will be a checkbox for
that profile in the regular Bluetooth device settings screen.

Bug: 3283928
Change-Id: Ic25139f8862b305feb0381e61c24b7783fad2366
5 files changed