EDD: Empty Cart Link Shortcode

<?php
add_shortcode( 'scseed_edd_empty_cart', 'scseed_edd_empty_cart_shortcode' );
function scseed_edd_empty_cart_shortcode( $atts ) {
    if ( ! function_exists( 'edd_get_checkout_uri' ) ) {
        return '';
    }
    $atts = shortcode_atts(
        array(
            'label' => __( 'Empty Cart', 'scseed' ),
            'class' => 'scseed-empty-cart-link',
        ),
        $atts,
        'scseed_edd_empty_cart'
    );
    $url = add_query_arg( array( 'edd_action' => 'empty_cart' ), edd_get_checkout_uri() );
    return sprintf(
        '<a href="%s" class="%s">%s</a>',
        esc_url( $url ),
        esc_attr( $atts['class'] ),
        esc_html( $atts['label'] )
    );
}