Remove code related to title directionality, we never used it

Source/core/loader/HistoryController.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 418 matching lines @@
     for (Frame* child = m_frame->tree()->firstChild(); child; child = child->tree()->nextSibling())
         child->loader()->history()->recursiveUpdateForSameDocumentNavigation();
 }
 
 void HistoryController::setCurrentItem(HistoryItem* item)
 {
     m_previousItem = m_currentItem;
     m_currentItem = item;
 }
 
-void HistoryController::setCurrentItemTitle(const StringWithDirection& title)
+void HistoryController::setCurrentItemTitle(const String& title)
 {
     if (m_currentItem)
-        // FIXME: make use of title.direction() as well.
-        m_currentItem->setTitle(title.string());
+        m_currentItem->setTitle(title);
 }
 
 bool HistoryController::currentItemShouldBeReplaced() const
 {
     // From the HTML5 spec for location.assign():
     //  "If the browsing context's session history contains only one Document,
     //   and that was the about:blank Document created when the browsing context
     //   was created, then the navigation must be done with replacement enabled."
     return m_currentItem && !m_previousItem && equalIgnoringCase(m_currentItem->urlString(), blankURL());
 }
@@ skipping 253 matching lines @@
         m_currentItem->setURLString(urlString);
     m_currentItem->setTitle(title);
     m_currentItem->setStateObject(stateObject);
     m_currentItem->setFormData(0);
     m_currentItem->setFormContentType(String());
 
     ASSERT(m_frame->page());
 }
 
 } // namespace WebCore