ExInitializeWorkItem: synch with Windows (only NULL the Flink)

reactos/include/ddk

diff -u -r1.45 -r1.46
--- exfuncs.h	11 Dec 2004 00:13:37 -0000	1.45
+++ exfuncs.h	24 Dec 2004 01:39:50 -0000	1.46
@@ -344,8 +344,7 @@

 	ASSERT_IRQL(DISPATCH_LEVEL); \
 	(Item)->WorkerRoutine = (Routine); \
 	(Item)->Parameter = (RoutineContext); \

-	(Item)->List.Flink = NULL; \
-	(Item)->List.Blink = NULL;

+	(Item)->List.Flink = NULL;

 
 NTSTATUS
 STDCALL