How to remove (Page 1) from page title?

I think I've figured out how to do it. I'm new to PunBB extensions, so I hope knowledgeable people will let me know any corrections that should be made. It seems to work for me, though.

manifest.xml looks like:

<?xml version="1.0" encoding="utf-8"?>

<extension engine="1.0">
    <id>no_page1_title</id>
    <title>No (Page 1) in page title</title>
    <description>Strips annoying (Page 1) from all forum page titles</description>
    <version>0.1</version>
    <author>Mary Fredborg</author>
    <minversion>1.3.4</minversion>
    <maxtestedon>1.3.4</maxtestedon>
    <hooks>
        <hook id="co_common"><![CDATA[
            $pun_extensions_used = array_merge(isset($pun_extensions_used) ? $pun_extensions_used : array(), array($ext_info['id']));
        ]]></hook>

        <hook id="fn_generate_crumbs_start"><![CDATA[
            // take it out, so it won't appear in page <title>
            if ($reverse == true and $forum_page['page'] == 1)
            {
                $current_page = $forum_page['page'];
                unset($forum_page['page']);
            }
        ]]></hook>
    </hooks>
</extension>