Remove code related to title directionality, we never used it

Source/testing/runner/TestRunner.cpp

Index: Source/testing/runner/TestRunner.cpp
diff --git a/Source/testing/runner/TestRunner.cpp b/Source/testing/runner/TestRunner.cpp
index 555b811a216faa2bdd363b7c209830a78575b9b3..5014944961986030211483890466cd3eece60d91 100644
--- a/Source/testing/runner/TestRunner.cpp
+++ b/Source/testing/runner/TestRunner.cpp
@@ -299,7 +299,6 @@ TestRunner::TestRunner(TestInterfaces* interfaces)
 
     // Properties.
     bindProperty("globalFlag", &m_globalFlag);
-    bindProperty("titleTextDirection", &m_titleTextDirection);
     bindProperty("platformName", &m_platformName);
     bindProperty("tooltipText", &m_tooltipText);
     bindProperty("disableNotifyDone", &m_disableNotifyDone);
@@ -427,7 +426,6 @@ void TestRunner::reset()
     m_httpHeadersToClear.clear();
 
     m_globalFlag.set(false);
-    m_titleTextDirection.set("ltr");
     m_webHistoryItemCount.set(0);
     m_interceptPostMessage.set(false);
     m_platformName.set("chromium");
@@ -629,11 +627,6 @@ bool TestRunner::shouldStayOnPageAfterHandlingBeforeUnload() const
     return m_shouldStayOnPageAfterHandlingBeforeUnload;
 }
 
-void TestRunner::setTitleTextDirection(WebKit::WebTextDirection dir)
-{
-    m_titleTextDirection.set(dir == WebKit::WebTextDirectionLeftToRight ? "ltr" : "rtl");
-}
-
 const std::set<std::string>* TestRunner::httpHeadersToClear() const
 {
     return &m_httpHeadersToClear;