Revert of [inspector] Initial import of v8_inspector.

src/inspector/V8Compat.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_INSPECTOR_V8COMPAT_H_
-#define V8_INSPECTOR_V8COMPAT_H_
-
-#include <v8.h>
-
-#if V8_MAJOR_VERSION < 5 || (V8_MAJOR_VERSION == 5 && V8_MINOR_VERSION < 1)
-namespace v8 {
-
-// In standalone V8 inspector this is expected to be noop anyways...
-class V8_EXPORT MicrotasksScope {
-public:
-    enum Type { kRunMicrotasks, kDoNotRunMicrotasks };
-
-    MicrotasksScope(Isolate* isolate, Type type)
-    {
-        // No-op
-    }
-};
-
-} // namespace v8
-#define V8_FUNCTION_NEW_REMOVE_PROTOTYPE(context, callback, data, length) \
-    v8::Function::New((context), (callback), (data), (length))
-#else
-#define V8_FUNCTION_NEW_REMOVE_PROTOTYPE(context, callback, data, length) \
-    v8::Function::New((context), (callback), (data), (length), v8::ConstructorBehavior::kThrow)
-#endif // V8_MAJOR_VERSION < 5 || (V8_MAJOR_VERSION == 5 && V8_MINOR_VERSION < 1)
-
-#endif // V8_INSPECTOR_V8COMPAT_H_