filter the Genesis navigation classes to remove super fish from either menu.

remove-superfish-from-either-menu.php

<?php
// don't include the php tag


// this goes in your functions.php file in your child theme. Use a code editor and FTP, 
// do not edit php files with the editor in the backend of WordPress. 
// Use developer tools if you do developer work.
 
/** ====================================================================================

 * Entirely replace the classes on the 
 * nav-primary > ul and remove the class .js-superfish

==================================================================================== **/
function yourprefix_remove_superfish_nav_primary( $args ) {
 if( 'primary' == $args['theme_location'] ) {
 $args['menu_class'] = 'menu genesis-nav-menu menu-primary';
   }
return $args;
}
add_filter( 'wp_nav_menu_args', 'yourprefix_remove_superfish_nav_primary' );



/** ====================================================================================

 * Entirely replace the classes on the 
 * nav-secondary > ul and remove the class .js-superfish

==================================================================================== **/
 
function yourprefix_remove_superfish_nav_secondary( $args ) {
 if( 'secondary' == $args['theme_location'] ) {
 $args['menu_class'] = 'menu genesis-nav-menu menu-secondary';
   }
return $args;
}
add_filter( 'wp_nav_menu_args', 'yourprefix_remove_superfish_nav_secondary' );