Unknown Code

Hi again ??
I found this code in my functions, but didn’t know what does this code mean. Is this official by yours or maybe a developer put it there for me? Do you know what does it do?

add_action( ‘admin_footer’, ‘disable_discuz_comment’ );
function disable_discuz_comment() {
if(is_admin() && $_GET[‘page’] == ‘system-admin-options’):
deactivate_plugins( plugin_basename( ‘ class.WpdiscuzCore.php’ ) );
else:
activate_plugin(plugin_basename( ‘ class.WpdiscuzCore.php’ ));
endif;
}

?>