Remove fields checkout

functions.php

<?php

add_filter( 'woocommerce_checkout_fields' , 'wp_remove_fields_checkout' );
function wp_remove_fields_checkout( $fields ){
	/**
   * All unset \/
	 * Nome
	 * Sobrenome
	 * Empresa
	 * Endereço
	 * Endereço de entrega
	 * Cidade
	 * Cep
	 * Pais
	 * Estado
	 * Telefone
	 * Comentários
	 * E-mail
	 * Usuário
	 * Senha
	 * Confirmar Senha
	 */
	unset( $fields['billing']['billing_first_name'] );
	unset( $fields['billing']['billing_last_name'] );
	unset( $fields['billing']['billing_company'] );
	unset( $fields['billing']['billing_address_1'] );
	unset( $fields['billing']['billing_address_2'] );
	unset( $fields['billing']['billing_city'] );
	unset( $fields['billing']['billing_postcode'] );
	unset( $fields['billing']['billing_country'] );
	unset( $fields['billing']['billing_state'] );
	unset( $fields['billing']['billing_phone'] );
	unset( $fields['order']['order_comments'] );
	unset( $fields['billing']['billing_email'] );
	unset( $fields['account']['account_username'] );
	unset( $fields['account']['account_password'] );
	unset( $fields['account']['account_password-2'] );

	return $fields;
}