// Concatenate remove link after item qty
function filter_woocommerce_checkout_cart_item_quantity( $item_qty, $cart_item, $cart_item_key ) {
    $remove_link = apply_filters('woocommerce_cart_item_remove_link',
    sprintf(
        '×',
        __( 'Remove this item', 'woocommerce' ),
        esc_attr( $cart_item['product_id'] ),
        esc_attr( $cart_item['data']->get_sku() ),
        esc_attr( $cart_item_key )
    ),
    $cart_item_key );

    // Return
    return $item_qty . $remove_link;
}
add_filter( 'woocommerce_checkout_cart_item_quantity', 'filter_woocommerce_checkout_cart_item_quantity', 10, 3 );

// jQuery - Ajax script
function action_wp_footer() {
    // Only checkout page
    if ( ! is_checkout() )
        return;
    ?>
    
    cart->remove_cart_item( $cart_item_key );
    }
    
    // Alway at the end (to avoid server error 500)
    die();
}
add_action( 'wp_ajax_woo_product_remove', 'woo_product_remove' );
add_action( 'wp_ajax_nopriv_woo_product_remove', 'woo_product_remove' );