xfrm: Kill XFRM_LOOKUP_WAIT flag.

This can be determined from the flow flags instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/dst.h b/include/net/dst.h
index 4fedffd..15d67c8 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -421,8 +421,7 @@
 
 /* Flags for xfrm_lookup flags argument. */
 enum {
-	XFRM_LOOKUP_WAIT = 1 << 0,
-	XFRM_LOOKUP_ICMP = 1 << 1,
+	XFRM_LOOKUP_ICMP = 1 << 0,
 };
 
 struct flowi;