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

services/resource_coordinator/coordination_unit/process_coordination_unit_impl.h

Index: services/resource_coordinator/coordination_unit/process_coordination_unit_impl.h
diff --git a/services/resource_coordinator/coordination_unit/process_coordination_unit_impl.h b/services/resource_coordinator/coordination_unit/process_coordination_unit_impl.h
deleted file mode 100644
index eadb064234617c238e94240e372e5ba6c70706c5..0000000000000000000000000000000000000000
--- a/services/resource_coordinator/coordination_unit/process_coordination_unit_impl.h
+++ /dev/null
@@ -1,42 +0,0 @@
-// 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_PROCESS_COORDINATION_UNIT_IMPL_H_
-#define SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_PROCESS_COORDINATION_UNIT_IMPL_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "base/process/process_metrics.h"
-#include "base/timer/timer.h"
-#include "services/resource_coordinator/coordination_unit/coordination_unit_impl.h"
-
-namespace service_manager {
-class ServiceContextRef;
-}
-
-namespace resource_coordinator {
-
-struct CoordinationUnitID;
-
-class ProcessCoordinationUnitImpl : public CoordinationUnitImpl {
- public:
-  ProcessCoordinationUnitImpl(
-      const CoordinationUnitID& id,
-      std::unique_ptr<service_manager::ServiceContextRef> service_ref);
-  ~ProcessCoordinationUnitImpl() override;
-  void MeasureProcessCPUUsage();
-  double GetCPUUsageForTesting() override;
-
- private:
-  std::unique_ptr<base::ProcessMetrics> process_metrics_;
-  base::OneShotTimer repeating_timer_;
-  double cpu_usage_;
-
-  DISALLOW_COPY_AND_ASSIGN(ProcessCoordinationUnitImpl);
-};
-
-}  // namespace resource_coordinator
-
-#endif  // SERVICES_RESOURCE_COORDINATOR_COORDINATION_UNIT_PROCESS_COORDINATION_UNIT_IMPL_H_