Revert of [heap] Parallel newspace evacuation, semispace copy, and compaction \o/

src/utils-inl.h

-// Copyright 2016 the V8 project 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 V8_UTILS_INL_H_
-#define V8_UTILS_INL_H_
-
-#include "src/utils.h"
-
-#include "include/v8-platform.h"
-#include "src/base/platform/time.h"
-#include "src/v8.h"
-
-namespace v8 {
-namespace internal {
-
-class TimedScope {
- public:
-  explicit TimedScope(double* result)
-      : start_(TimestampMs()), result_(result) {}
-
-  ~TimedScope() { *result_ = TimestampMs() - start_; }
-
- private:
-  static inline double TimestampMs() {
-    return V8::GetCurrentPlatform()->MonotonicallyIncreasingTime() *
-           static_cast<double>(base::Time::kMillisecondsPerSecond);
-  }
-
-  double start_;
-  double* result_;
-};
-
-}  // namespace internal
-}  // namespace v8
-
-#endif  // V8_UTILS_INL_H_