You try to remove one of core templates that is used in multiple places. This is wrong.
Instead, you should create a custom module that "decorates" the getAllowedTargets() method in \XLite\Module\CDev\FeaturedProducts\View\Customer\ FeaturedProducts class as follows:
PHP Code:
// ...
/**
* Return list of targets allowed for this widget
*
* @return array
*/
public static function getAllowedTargets()
{
return array('main');
}
// ...
This will make the widget appear on pages rendered by the "main" controller only - and this controller renders only the home page.