NFSv4: Don't fail nfs4_xdr_dec_open if decode_restorefh() failed

We can already easily recover from that inside _nfs4_proc_open().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index c087384..99a123d 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -4035,7 +4035,7 @@
 		goto out;
 	if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
 		goto out;
-	if ((status = decode_restorefh(&xdr)) != 0)
+	if (decode_restorefh(&xdr) != 0)
 		goto out;
 	decode_getfattr(&xdr, res->dir_attr, res->server);
 out: