Revert of Add CPP API for BLE advertisments.

device/bluetooth/bluetooth_adapter_chromeos.h

Index: device/bluetooth/bluetooth_adapter_chromeos.h
diff --git a/device/bluetooth/bluetooth_adapter_chromeos.h b/device/bluetooth/bluetooth_adapter_chromeos.h
index 1811287ada8a32296f05095f7623608cacc8443e..7b17f5380e5fdac646a87cb467acf4b5db1a15d2 100644
--- a/device/bluetooth/bluetooth_adapter_chromeos.h
+++ b/device/bluetooth/bluetooth_adapter_chromeos.h
@@ -96,11 +96,6 @@
       const device::BluetoothAdapter::AcquiredCallback& callback,
       const device::BluetoothAudioSink::ErrorCallback& error_callback) override;
 
-  void RegisterAdvertisement(
-      scoped_ptr<device::BluetoothAdvertisement::Data> advertisement_data,
-      const CreateAdvertisementCallback& callback,
-      const CreateAdvertisementErrorCallback& error_callback) override;
-
   // Locates the device object by object path (the devices map and
   // BluetoothDevice methods are by address).
   BluetoothDeviceChromeOS* GetDeviceWithPath(