Revert "ECWID-135200 Recurring subscription orders are created without Tax ID although it's presented in the initial order - changed customerFiscalCode default value to empty string (as in ApiOrder) in FetchedOrder and UpdatedOrder"

This reverts commit e5aaa6e.

Author: renat-ayzyatullen

src/main/kotlin/com/ecwid/apiclient/v3/dto/order/request/UpdatedOrder.kt

@@ -95,7 +95,7 @@ data class UpdatedOrder(
 	val orderExtraFields: List<OrderExtraFields>? = null,
 	val paymentReference: String? = null,
 	val loyalty: Loyalty? = null,
-	val customerFiscalCode: String? = "",
+	val customerFiscalCode: String? = null,
 
 ) : ApiUpdatedDTO {
 

src/main/kotlin/com/ecwid/apiclient/v3/dto/order/result/FetchedOrder.kt

@@ -116,7 +116,7 @@ data class FetchedOrder(
 	val paymentReference: String? = null,
 	val shippingLabelAvailableForShipment: Boolean = false,
 	val loyalty: Loyalty? = null,
-	val customerFiscalCode: String? = "",
+	val customerFiscalCode: String? = null,
 
 	) : ApiFetchedDTO {