This is the script I added to disable the "Go" button:
<script>
jQuery(document).ready(function() {
jQuery('.mobileQty').keypress(function(e) {
var code = (e.keyCode ? e.keyCode : e.which);
if ( (code==13) || (code==10))
{
jQuery(this).blur();
return false;
}
});
});
</script>
Just add it right before the </body> tag on the cart.php page if you accidentally removed it.