edit file:
templates/base/scripts/BxBaseMenu.php
find line in function genTopFooter
$aFunctions = array('genMoreLanguagesElement', 'genMoreTemplatesElement', 'genSearchElement');
change to
$aFunctions = array('genMoreLanguagesElement', 'genMoreTemplatesElement');
I made this modification and the search icon disapeared but now i get an error at the top of the site.
Warning: Cannot modify header information - headers already sent by (output started at /home/xxxx/public_html/templates/base/scripts/BxBaseMenu.php:1791) in/home/xxxx/public_html/inc/design.inc.php on line 133
Thanks