Revert of Implement BluetoothGattNotifySession::Stop on Android

device/bluetooth/test/mock_bluetooth_gatt_notify_session.cc

Index: device/bluetooth/test/mock_bluetooth_gatt_notify_session.cc
diff --git a/device/bluetooth/test/mock_bluetooth_gatt_notify_session.cc b/device/bluetooth/test/mock_bluetooth_gatt_notify_session.cc
index 4123e2d342dbaaca59093d62c1ff4ac8538de20e..e4123f67741db1a75d06e85469e36288f1613452 100644
--- a/device/bluetooth/test/mock_bluetooth_gatt_notify_session.cc
+++ b/device/bluetooth/test/mock_bluetooth_gatt_notify_session.cc
@@ -11,8 +11,9 @@
 namespace device {
 
 MockBluetoothGattNotifySession::MockBluetoothGattNotifySession(
-    base::WeakPtr<BluetoothRemoteGattCharacteristic> characteristic)
-    : BluetoothGattNotifySession(characteristic) {
+    const std::string& characteristic_identifier) {
+  ON_CALL(*this, GetCharacteristicIdentifier())
+      .WillByDefault(Return(characteristic_identifier));
   ON_CALL(*this, IsActive()).WillByDefault(Return(true));
 }