dix: fix memory leak, free event list on shutdown. (#25028)

X.Org Bug 25028 <http://bugs.freedesktop.org/show_bug.cgi?id=25028>

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
(cherry picked from commit c20c889727)

dix/events.c

@@ -5086,12 +5086,9 @@ InitEvents(void)
 void
 CloseDownEvents(void)
 {
-    int len;
-    EventListPtr list;
-
-    len = GetEventList(&list);
-    while(len--)
-        xfree(list[len].event);
+    FreeEventList(InputEventList, InputEventListLen);
+    InputEventListLen = 0;
+    InputEventList = NULL;
 }
 
 /**