ipv4: Kill flowi arg to fib_select_multipath()

Completely unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index d73d758..b5d523b 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1210,7 +1210,7 @@
  * The algorithm is suboptimal, but it provides really
  * fair weighted route distribution.
  */
-void fib_select_multipath(const struct flowi *flp, struct fib_result *res)
+void fib_select_multipath(struct fib_result *res)
 {
 	struct fib_info *fi = res->fi;
 	int w;