Revert of Build a basic Mojo service framework for device/usb

device/core/device_client.cc

 // 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/core/device_client.h"
 
 #include "base/logging.h"
 
 namespace device {
 
@@ skipping 17 matching lines @@
   DCHECK(g_instance);
   return g_instance;
 }
 
 UsbService* DeviceClient::GetUsbService() {
   // This should never be called by clients which do not support the USB API.
   NOTREACHED();
   return NULL;
 }
 
-void DeviceClient::ConnectToUSBDeviceManager(
-    mojo::InterfaceRequest<usb::DeviceManager> request) {
-}
-
 HidService* DeviceClient::GetHidService() {
   // This should never be called by clients which do not support the HID API.
   NOTREACHED();
   return NULL;
 }
 
 }  // namespace device