Implement BluetoothGattNotifySession::Stop on Android, 2nd attempt

device/bluetooth/bluetooth_gatt_notify_session_android.cc

Index: device/bluetooth/bluetooth_gatt_notify_session_android.cc
diff --git a/device/bluetooth/bluetooth_gatt_notify_session_android.cc b/device/bluetooth/bluetooth_gatt_notify_session_android.cc
deleted file mode 100644
index 9f6e55394781729dfd01206a386a25eef31bfa3f..0000000000000000000000000000000000000000
--- a/device/bluetooth/bluetooth_gatt_notify_session_android.cc
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "device/bluetooth/bluetooth_gatt_notify_session_android.h"
-
-#include "base/logging.h"
-
-namespace device {
-
-BluetoothGattNotifySessionAndroid::BluetoothGattNotifySessionAndroid(
-    const std::string& characteristic_identifier)
-    : characteristic_id_(characteristic_identifier) {}
-
-BluetoothGattNotifySessionAndroid::~BluetoothGattNotifySessionAndroid() {}
-
-std::string BluetoothGattNotifySessionAndroid::GetCharacteristicIdentifier()
-    const {
-  return characteristic_id_;
-}
-
-bool BluetoothGattNotifySessionAndroid::IsActive() {
-  return true;
-}
-
-void BluetoothGattNotifySessionAndroid::Stop(const base::Closure& callback) {
-  NOTIMPLEMENTED();
-}
-
-}  // namespace device