add_filter( 'woocommerce_checkout_fields', 'custom_remove_woo_checkout_fields' );

function custom_remove_woo_checkout_fields( $fields ) {
    // Remove billing fields
    unset($fields['billing']['billing_company']); // Remove Company Name
    unset($fields['billing']['billing_phone']);   // Remove Phone Number
    unset($fields['billing']['billing_address_2']); // Remove Address Line 2

    // Remove shipping fields if needed
    unset($fields['shipping']['shipping_company']); // Remove Shipping Company Name

    return $fields;
}