Remove code related to title directionality, we never used it

Source/core/loader/HistoryController.cpp

Index: Source/core/loader/HistoryController.cpp
diff --git a/Source/core/loader/HistoryController.cpp b/Source/core/loader/HistoryController.cpp
index 2a93d71cf7bcf3717b2d4c632688cb9d0359a068..d07a446a178f4a9986dd7aac0adbcb5936779124 100644
--- a/Source/core/loader/HistoryController.cpp
+++ b/Source/core/loader/HistoryController.cpp
@@ -436,11 +436,10 @@ void HistoryController::setCurrentItem(HistoryItem* item)
     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