Revert of [GRC] Process Coordination Unit support for Global Resource Controller

services/resource_coordinator/coordination_unit/coordination_unit_factory.h

-// Copyright 2017 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 SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_COORDINATION_UNIT_FACTORY_H_
-#define SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_COORDINATION_UNIT_FACTORY_H_
-
-#include <memory>
-
-#include "services/resource_coordinator/coordination_unit/coordination_unit_impl.h"
-
-namespace service_manager {
-class ServiceContextRef;
-}
-
-namespace resource_coordinator {
-
-struct CoordinationUnitID;
-
-namespace coordination_unit_factory {
-
-std::unique_ptr<CoordinationUnitImpl> CreateCoordinationUnit(
-    const CoordinationUnitID& id,
-    std::unique_ptr<service_manager::ServiceContextRef> service_ref);
-
-}  // namespace CoordinationUnitFactory
-
-}  // namespace resource_coordinator
-
-#endif  // SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_COORDINATION_UNIT_FACTORY_H_