f2fs: remove obsolete pointer for truncate_xattr_node

This patch removes obosolete parameter for truncate_xattr_node.

Suggested-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 7695654..5a85627 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -421,7 +421,7 @@
 
 		/* no need to use xattr node block */
 		if (hsize <= inline_size) {
-			err = truncate_xattr_node(inode, ipage);
+			err = truncate_xattr_node(inode);
 			alloc_nid_failed(sbi, new_nid);
 			return err;
 		}