Changes

: The address of removed adapter. The property is null empty string for event handler [[B2G/Bluetooth/WebBluetooth-v2/BluetoothManager#onadapteradded|manager.onadapteradded]] since [[B2G/Bluetooth/WebBluetooth-v2/BluetoothAdapter|BluetoothAdapter]] already has property [[B2G/Bluetooth/WebBluetooth-v2/BluetoothAdapter#address|address]].