[XFS] Remove redundant directory checks from inode link operation.

SGI-PV: 904196
SGI-Modid: xfs-linux-melb:xfs-kern:26343a

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 12810ba..b3b4645 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -419,9 +419,6 @@
 	int		error;
 
 	ip = old_dentry->d_inode;	/* inode being linked to */
-	if (S_ISDIR(ip->i_mode))
-		return -EPERM;
-
 	tdvp = vn_from_inode(dir);
 	vp = vn_from_inode(ip);