Open themes/default/badgeawards2.template.php
Find Line 631
echo '<td><a href="' . $scripturl . '?action=admin;area=badgeawards;sa=delmembadge&id=' . $row['id_log'] . '">' . $txt['badge_delete'] . '</a></td>';
Change to
if ($user_info['is_admin'])
echo '<td><a href="' . $scripturl . '?action=admin;area=badgeawards;sa=delmembadge&id=' . $row['id_log'] . '">' . $txt['badge_delete'] . '</a></td>';