At this time the remove link is automatically formatted for your HTML message. You would need to manually modify admin.php to change this.
case 'remove' :
if($mhtml=='1'){
if($data1) $rtext = $data1 . "<br>"; else $rtext = '';
$rtext .= "<a class=coderem href=\"" . $lmpath . "rem.php?u=$usid\">$data2</a><br>";