sim: Remove DelayFunction

`DelayFunction` is unused.

Change-Id: I28aa756054c9b121fe4cfa65c393366f26ccb128
Signed-off-by: Sean Wilson <spwilson2@wisc.edu>
Reviewed-on: https://gem5-review.googlesource.com/3741
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>

src/sim/eventq.hh

@@ -768,26 +768,6 @@ class EventManager
     void setCurTick(Tick newVal) { eventq->setCurTick(newVal); }
 };
 
-template <class T, void (T::* F)()>
-void
-DelayFunction(EventQueue *eventq, Tick when, T *object)
-{
-    class DelayEvent : public Event
-    {
-      private:
-        T *object;
-
-      public:
-        DelayEvent(T *o)
-            : Event(Default_Pri, AutoDelete), object(o)
-        { }
-        void process() { (object->*F)(); }
-        const char *description() const { return "delay"; }
-    };
-
-    eventq->schedule(new DelayEvent(object), when);
-}
-
 template <class T, void (T::* F)()>
 class EventWrapper : public Event
 {