NFS: Remove nfs4_setup_sequence from generic unlink code

This is an NFS v4 specific operation, so it belongs in the NFS v4 code
and not the generic client.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index fae71c9..9c5a798 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -20,15 +20,6 @@
 #include "iostat.h"
 #include "delegation.h"
 
-struct nfs_unlinkdata {
-	struct hlist_node list;
-	struct nfs_removeargs args;
-	struct nfs_removeres res;
-	struct inode *dir;
-	struct rpc_cred	*cred;
-	struct nfs_fattr dir_attr;
-};
-
 /**
  * nfs_free_unlinkdata - release data from a sillydelete operation.
  * @data: pointer to unlink structure.
@@ -107,25 +98,16 @@
 	nfs_sb_deactive(sb);
 }
 
-#if defined(CONFIG_NFS_V4_1)
 static void nfs_unlink_prepare(struct rpc_task *task, void *calldata)
 {
 	struct nfs_unlinkdata *data = calldata;
-	struct nfs_server *server = NFS_SERVER(data->dir);
-
-	if (nfs4_setup_sequence(server, &data->args.seq_args,
-				&data->res.seq_res, task))
-		return;
-	rpc_call_start(task);
+	NFS_PROTO(data->dir)->unlink_rpc_prepare(task, data);
 }
-#endif /* CONFIG_NFS_V4_1 */
 
 static const struct rpc_call_ops nfs_unlink_ops = {
 	.rpc_call_done = nfs_async_unlink_done,
 	.rpc_release = nfs_async_unlink_release,
-#if defined(CONFIG_NFS_V4_1)
 	.rpc_call_prepare = nfs_unlink_prepare,
-#endif /* CONFIG_NFS_V4_1 */
 };
 
 static int nfs_do_call_unlink(struct dentry *parent, struct inode *dir, struct nfs_unlinkdata *data)