Revert of Implement BluetoothGattNotifySession::Stop on Android

chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc

Index: chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc
diff --git a/chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc b/chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc
index eadea514f0743bb1c31ad567967f774a19e57b7f..1d7df8a1c4620660b9a96a223c81d693b605dbab 100644
--- a/chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc
+++ b/chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_apitest.cc
@@ -652,10 +652,10 @@
 
   BluetoothGattNotifySession* session0 =
       new testing::NiceMock<MockBluetoothGattNotifySession>(
-          chrc0_->GetWeakPtr());
+          kTestCharacteristicId0);
   BluetoothGattNotifySession* session1 =
       new testing::NiceMock<MockBluetoothGattNotifySession>(
-          chrc2_->GetWeakPtr());
+          kTestCharacteristicId2);
 
   EXPECT_CALL(*chrc0_, StartNotifySession(_, _))
       .Times(1)
@@ -1282,10 +1282,10 @@
 
   BluetoothGattNotifySession* session0 =
       new testing::NiceMock<MockBluetoothGattNotifySession>(
-          chrc0_->GetWeakPtr());
+          kTestCharacteristicId0);
   MockBluetoothGattNotifySession* session1 =
       new testing::NiceMock<MockBluetoothGattNotifySession>(
-          chrc1_->GetWeakPtr());
+          kTestCharacteristicId1);
 
   EXPECT_CALL(*session1, Stop(_))
       .Times(1)