remove zip from search

I to have the same problem.Incase you have find the solution plz keep a message how to remove it.

in /templates/tmpl_uni/scripts/index.php

comment or remove:
$ret .= '<div class="qsi_line">';
$ret .= '<div class="qsi_first">';
$ret .= _t("_within");
$ret .= '</div>';
$ret .= '<div class="qsi_second">';
$ret .= '<span style="position:absolute; top:0px; left:0px;">';
$ret .= '<input type="text" name="distance" style="width:46px;" />';
$ret .= '</span>';
$ret .= '<span style="position:absolute; top:0px; left:80px;" >';
$ret .= '<select name="metric" style="position:relative;float:left;width:50px;left:0px;">';
$ret .= '<option selected="selected" value="miles">' . _t("_miles") . '</option>';
$ret .= '<option value="km">' . _t("_km") . '</option>';
$ret .= '</select>';
$ret .= '</span>';
$ret .= '</div>';
$ret .= '</div>';

$ret .= '<div class="qsi_line">';
$ret .= '<div class="qsi_first">';
$ret .= _t("_from ZIP");
$ret .= '</div>';
$ret .= '<div class="qsi_second">';
$ret .= '<input type="text" name="zip" />';
$ret .= '</div>';
$ret .= '</div>';