WIP: Implement closer BPN integration

src/BusProNet/ApiClient.php

@@ -16,7 +16,6 @@ class ApiClient
 {
     public const TYPE_NOTIFICATION = 'HINWEIS';
     public const TYPE_CUSTOMER_DATA = 'KUNDENKONTO';
-    public const TYPE_PRODUCTS = 'PRODUKTE';
     public const TYPE_BASE_DATA_COUNTRIES = 'STAMMLAENDER';
     public const TYPE_BASE_DATA_PICKUPS = 'STAMMZUSTIEGE';
     public const TYPE_BASE_DATA_HOTELS = 'STAMMHOTELS';