Hiding non-published post menu items from WordPress Menu - for post_type page and post

gistfile1.php

add_filter( 'wp_get_nav_menu_items', 'hide_non_published_menu_items', 10, 3 );

function hide_non_published_menu_items( $items, $menu, $args ) {

    if ( $items ) {
        foreach( $items as $k => $item ) {
            // use $item->post_type if you want to apply this to custom post types
            switch( $item->object ) {
                case 'page':
                case 'post':
                    if ( get_post_status( absInt($item->object_id) ) != 'publish' ) {
                        unset( $items[$k] );
                    }
                break;
            }
        }
        return $items;
    }

}