ottima dritta Dark
la stringa da togliere è questa :
// Show the load time?
if (isset($context['ob_googlebot_stats']))
echo '
<br /><br /><span class="smalltext">', $txt['ob_googlebot_stats_lastvisit'], timeformat($context['ob_googlebot_stats']['Googlebot']['lastvisit']), '</span>';
if ($context['show_load_time'])
echo '
<span class="smalltext">', $txt['smf301'], $context['load_time'], $txt['smf302'], $context['load_queries'], $txt['smf302b'], '</span>';