Revert "Make GCC happy again." and "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".

test/unittests/base/logging-unittest.cc

-// Copyright 2015 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.
-
-#include "src/base/logging.h"
-#include "testing/gtest-support.h"
-
-namespace v8 {
-namespace base {
-
-TEST(LoggingTest, CheckEQImpl) {
-  EXPECT_EQ(nullptr, CheckEQImpl(0.0, 0.0, ""));
-  EXPECT_EQ(nullptr, CheckEQImpl(0.0, -0.0, ""));
-  EXPECT_EQ(nullptr, CheckEQImpl(-0.0, 0.0, ""));
-  EXPECT_EQ(nullptr, CheckEQImpl(-0.0, -0.0, ""));
-}
-
-}  // namespace base
-}  // namespace v8