bluetooth: Implement RSSI and Tx Power on macOS and Android

device/bluetooth/bluetooth_device_android.cc

Index: device/bluetooth/bluetooth_device_android.cc
diff --git a/device/bluetooth/bluetooth_device_android.cc b/device/bluetooth/bluetooth_device_android.cc
index df8725a295cd9516514c4256c529850b4e2ddc9d..3bcd2835b51b4462e04878f9cf8688ece8e61019 100644
--- a/device/bluetooth/bluetooth_device_android.cc
+++ b/device/bluetooth/bluetooth_device_android.cc
@@ -127,16 +127,6 @@ bool BluetoothDeviceAndroid::IsConnecting() const {
   return false;
 }
 
-base::Optional<int8_t> BluetoothDeviceAndroid::GetInquiryRSSI() const {
-  NOTIMPLEMENTED();
-  return base::nullopt;
-}
-
-base::Optional<int8_t> BluetoothDeviceAndroid::GetInquiryTxPower() const {
-  NOTIMPLEMENTED();
-  return base::nullopt;
-}
-
 bool BluetoothDeviceAndroid::ExpectingPinCode() const {
   NOTIMPLEMENTED();
   return false;