[carpeperdiem]

How about commenting out the code in products.tpl?

FIND:

 <table width="100%" cellspacing="0" cellpadding="0">
<tr>
    <td><span>{if $product.fulldescr ne ""}{$product.fulldescr}{else}{$product.descr}{/if}</span></td>
{if $product.taxed_price gt 0 and $product.list_price gt 0}
    <td align="right" valign="top" width="60" id="save_percent_box"{if $product.taxed_price >= $product.list_price} style="display: none;"{/if}>

<table width="60" cellspacing="1" cellpadding="2">
<tr>
    <td class="SaveMoneyLabel">
<br />
{math equation="100-(price/lprice)*100" price=$product.taxed_price lprice=$product.list_price format="%3.0f" assign=discount}
&nbsp;<span id="save_percent">{ $discount }</span>%
    </td>
</tr>
</table>

comment it out