hfs: remove unnecessary dentry_unhash on rmdir, dir rename

hfs does not have problems with references to unlinked directories.
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/hfs/dir.c

@@ -253,9 +253,6 @@ static int hfs_remove(struct inode *dir, struct dentry *dentry)
 	struct inode *inode = dentry->d_inode;
 	int res;
 
-	if (S_ISDIR(inode->i_mode))
-		dentry_unhash(dentry);
-
 	if (S_ISDIR(inode->i_mode) && inode->i_size != 2)
 		return -ENOTEMPTY;
 	res = hfs_cat_delete(inode->i_ino, dir, &dentry->d_name);
@@ -286,9 +283,6 @@ static int hfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 	/* Unlink destination if it already exists */
 	if (new_dentry->d_inode) {
-		if (S_ISDIR(new_dentry->d_inode->i_mode))
-			dentry_unhash(new_dentry);
-
 		res = hfs_remove(new_dir, new_dentry);
 		if (res)
 			return res;