ocfs2: remove unused handle argument from ocfs2_meta_lock_full()

Now that this is unused and all callers pass NULL, we can safely remove it.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

fs/ocfs2/dir.c

@@ -89,7 +89,7 @@ int ocfs2_readdir(struct file * filp, void * dirent, filldir_t filldir)
 	stored = 0;
 	bh = NULL;
 
-	error = ocfs2_meta_lock(inode, NULL, NULL, 0);
+	error = ocfs2_meta_lock(inode, NULL, 0);
 	if (error < 0) {
 		if (error != -ENOENT)
 			mlog_errno(error);