remove now unused internal iterator from EventImpl class

src/simulator/event-impl.cc

@@ -29,8 +29,7 @@ EventImpl::~EventImpl ()
 {}
 
 EventImpl::EventImpl ()
-  : m_internalIterator (0),
-    m_cancel (false)
+  : m_cancel (false)
 {}
 void 
 EventImpl::Invoke (void)
@@ -41,16 +40,6 @@ EventImpl::Invoke (void)
     }
 }
 void 
-EventImpl::SetInternalIterator (void *tag)
-{
-  m_internalIterator = tag;
-}
-void *
-EventImpl::GetInternalIterator (void) const
-{
-  return m_internalIterator;
-}
-void 
 EventImpl::Cancel (void)
 {
   m_cancel = true;

src/simulator/event-impl.h

@@ -31,13 +31,10 @@ public:
   virtual ~EventImpl () = 0;
   void Invoke (void);
   void Cancel (void);
-  void SetInternalIterator (void *iterator);
-  void *GetInternalIterator (void) const;
 protected:
   virtual void Notify (void) = 0;
 private:
   friend class Event;
-  void *m_internalIterator;
   bool m_cancel;
 };