Fix getting notified twice after subscribe to notifications and call readValue

device/bluetooth/bluetooth_remote_gatt_characteristic_win.cc

Index: device/bluetooth/bluetooth_remote_gatt_characteristic_win.cc
diff --git a/device/bluetooth/bluetooth_remote_gatt_characteristic_win.cc b/device/bluetooth/bluetooth_remote_gatt_characteristic_win.cc
index 3abe3bd2087053e9e3dd3881019ba10f225780cf..633be1c90413a7debf53631e7795ba5247fd6ced 100644
--- a/device/bluetooth/bluetooth_remote_gatt_characteristic_win.cc
+++ b/device/bluetooth/bluetooth_remote_gatt_characteristic_win.cc
@@ -397,9 +397,6 @@ void BluetoothRemoteGattCharacteristicWin::
     for (ULONG i = 0; i < value->DataSize; i++)
       characteristic_value_.push_back(value->Data[i]);
 
-    parent_service_->GetWinAdapter()->NotifyGattCharacteristicValueChanged(
-        this, characteristic_value_);
-
     callbacks.first.Run(characteristic_value_);
   }
   characteristic_value_read_or_write_in_progress_ = false;