tipc: Use default rhashtable hashfn

This patch removes the explicit jhash value for the hashfn parameter
of rhashtable.  The default is now jhash so removing the setting
makes no difference apart from making one less copy of jhash in
the kernel.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/tipc/socket.c

@@ -35,7 +35,6 @@
  */
 
 #include <linux/rhashtable.h>
-#include <linux/jhash.h>
 #include "core.h"
 #include "name_table.h"
 #include "node.h"
@@ -2294,7 +2293,6 @@ static const struct rhashtable_params tsk_rht_params = {
 	.head_offset = offsetof(struct tipc_sock, node),
 	.key_offset = offsetof(struct tipc_sock, portid),
 	.key_len = sizeof(u32), /* portid */
-	.hashfn = jhash,
 	.max_size = 1048576,
 	.min_size = 256,
 };