[NET]: Cut off the queue_mapping field from sk_buff

Just hide it behind the #ifdef, because nobody wants
it now.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ecb0ede..fd4e12f 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -300,8 +300,9 @@
 #endif
 
 	int			iif;
+#ifdef CONFIG_NETDEVICES_MULTIQUEUE
 	__u16			queue_mapping;
-
+#endif
 #ifdef CONFIG_NET_SCHED
 	__u16			tc_index;	/* traffic control index */
 #ifdef CONFIG_NET_CLS_ACT