Remove code related to title directionality, we never used it

Source/core/html/HTMLTitleElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 #ifndef HTMLTitleElement_h
 #define HTMLTitleElement_h
 
 #include "core/html/HTMLElement.h"
-#include "core/platform/text/StringWithDirection.h"
 
 namespace WebCore {
 
 class HTMLTitleElement FINAL : public HTMLElement {
 public:
     static PassRefPtr<HTMLTitleElement> create(const QualifiedName&, Document*);
 
     String text() const;
     void setText(const String&);
 
-    StringWithDirection textWithDirection();
-
 private:
     HTMLTitleElement(const QualifiedName&, Document*);
 
-    virtual void attach(const AttachContext& = AttachContext()) OVERRIDE;
-    virtual void detach(const AttachContext& = AttachContext()) OVERRIDE;
-
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE;
     virtual void removedFrom(ContainerNode*) OVERRIDE;
     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
-
-    void updateNonRenderStyle();
-    virtual RenderStyle* nonRendererStyle() const OVERRIDE;
-    virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
-    virtual void didRecalcStyle(StyleChange) OVERRIDE;
-
-    RefPtr<RenderStyle> m_style;
 };
 
 inline bool isHTMLTitleElement(const Node* node)
 {
     return node->hasTagName(HTMLNames::titleTag);
 }
 
 inline bool isHTMLTitleElement(const Element* element)
 {
     return element->hasTagName(HTMLNames::titleTag);
 }
 
 inline HTMLTitleElement* toHTMLTitleElement(Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLTitleElement(node));
     return static_cast<HTMLTitleElement*>(node);
 }
 
 } //namespace
 
 #endif