Code-Snippets-Functions/Execute a function on a child site/WooCommerce/remove-billing-first-last-name-fields-checkout.txt

add_filter( 'woocommerce_default_address_fields', 'customize_default_address_checkout_fields', 1000 );
function customize_default_address_checkout_fields( $fields ) {
    if( is_checkout() ) {
        $fields['first_name']['required'] = $fields['last_name']['required'] = false;
    }
    return $fields;
}

add_filter( 'woocommerce_billing_fields', 'customize_billing_checkout_fields', 1000 );
function customize_billing_checkout_fields( $fields ) {
    if( is_checkout() ) {
        unset($fields['billing_first_name'], $fields['billing_last_name']);
    }
    return $fields;
}