go to: component/com_virtuemart/themes/browse/includes
edit one of this files depending of what you have selected in layout style.
browse_listtable.tpl.php
browse_layouttable.tpl.php
browse_notables.tpl.php
Comment out following lines.
echo $ps_product->featuredProducts(true,10,true);
echo $recent_products;
It should look like this now
// echo $ps_product->featuredProducts(true,10,true);
// echo $recent_products;