Wordpress remove emoji from head, Woocommerce functions

functions.php

// EMOJI
remove_action( 'wp_print_styles', 'print_emoji_styles');
remove_action( 'wp_head','print_emoji_detection_script', 7);

// GENERATOR
add_action( 'get_the_generator_html', '_fc_return_null', 10, 2 );
add_action( 'get_the_generator_xhtml', '_fc_return_null', 10, 2 );
function _fc_return_null(){
    return null;
}

/** Add wrapper for post thumbnail **/
add_filter('post_thumbnail_html', function( $html, $post_id, $post_thumbnail_id, $size, $attr )
{
    ob_start();
    ?>
    <span class="featured-image">
        <a href="<?=get_the_permalink($post_id)?>">
            <?=$html?>
        </a>
    </span>
    <?php
    return ob_get_clean();
}, 10, 5);