[API] remove (deprecated) hidden properties.

include/v8.h

 // Copyright 2012 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.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 2947 matching lines @@
 
   /**
    * Returns the identity hash for this object. The current implementation
    * uses a hidden property on the object to store the identity hash.
    *
    * The return value will never be 0. Also, it is not guaranteed to be
    * unique.
    */
   int GetIdentityHash();
 
-  V8_DEPRECATED("Use v8::Object::SetPrivate instead.",
-                bool SetHiddenValue(Local<String> key, Local<Value> value));
-  V8_DEPRECATED("Use v8::Object::GetPrivate instead.",
-                Local<Value> GetHiddenValue(Local<String> key));
-  V8_DEPRECATED("Use v8::Object::DeletePrivate instead.",
-                bool DeleteHiddenValue(Local<String> key));
-
   /**
    * Clone this object with a fast but shallow copy.  Values will point
    * to the same values as the original object.
    */
   // TODO(dcarney): take an isolate and optionally bail out?
   Local<Object> Clone();
 
   /**
    * Returns the context in which the object was created.
    */
@@ skipping 5789 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // INCLUDE_V8_H_