Delete dead consumer enrollment code.

chrome/browser/chromeos/policy/consumer_unenrollment_handler.h

-// 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_UNENROLLMENT_HANDLER_H_
-#define CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_UNENROLLMENT_HANDLER_H_
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "components/keyed_service/core/keyed_service.h"
-
-namespace chromeos {
-class OwnerSettingsServiceChromeOS;
-}
-
-namespace policy {
-
-class ConsumerManagementService;
-class DeviceCloudPolicyManagerChromeOS;
-
-// ConsumerUnenrollmentHandler unenrolls the device from the consumer management
-// service. It sends a request to the server and resets the management settings.
-class ConsumerUnenrollmentHandler : public KeyedService {
- public:
-  ConsumerUnenrollmentHandler(
-      ConsumerManagementService* consumer_management_service,
-      DeviceCloudPolicyManagerChromeOS* device_cloud_policy_manager,
-      chromeos::OwnerSettingsServiceChromeOS* owner_settings_service);
-  ~ConsumerUnenrollmentHandler() override;
-
-  // Starts the unenrollment process.
-  void Start();
-
- private:
-  void OnUnregistered(bool success);
-  void OnManagementSettingsSet(bool success);
-
-  ConsumerManagementService* consumer_management_service_;
-  DeviceCloudPolicyManagerChromeOS* device_cloud_policy_manager_;
-  chromeos::OwnerSettingsServiceChromeOS* owner_settings_service_;
-
-  base::WeakPtrFactory<ConsumerUnenrollmentHandler> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ConsumerUnenrollmentHandler);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_CHROMEOS_POLICY_CONSUMER_UNENROLLMENT_HANDLER_H_