Remove all classes from anchors in navwalker menus (WordPress)

functions.php

//Put this in your functions.php or custom functionality plugin
// remove all classes from anchors in menus ~mj
function mj_remove_classes_from_all_menu_anchors( $atts ) {
    $atts['class'] = ''; // not it's blank; if you add classes like 'example1 class2', it'll add classes ~mj
 
    return $atts;
}
add_filter( 'nav_menu_link_attributes', 'mj_remove_classes_from_all_menu_anchors', 10 );