unused m_relatedTarget in CMouseEvent

since initial commit in

    commit acff30cd
    Date:   Tue Mar 2 08:47:29 2004 +0000
    #i25594# ui events

Change-Id: I47cadedb8899114aa64c2ac585e4a9722ea38720

unoxml/source/events/mouseevent.cxx

@@ -86,8 +86,7 @@ namespace DOM { namespace events
     }
     Reference< XEventTarget > SAL_CALL CMouseEvent::getRelatedTarget()
     {
-        ::osl::MutexGuard const g(m_Mutex);
-        return m_relatedTarget;
+        return Reference< XEventTarget >();
     }
 
     void SAL_CALL CMouseEvent::initMouseEvent(

unoxml/source/events/mouseevent.hxx

@@ -45,7 +45,6 @@ protected:
     bool m_altKey;
     bool m_metaKey;
     sal_Int16 m_button;
-    css::uno::Reference< css::xml::dom::events::XEventTarget > m_relatedTarget;
 
 public:
     explicit CMouseEvent();