remove infinite loop when output plugin provides a URI for a whole order (#5474)

src/pretix/base/services/tickets.py

@@ -69,9 +69,6 @@ def generate_order(order: int, provider: str):
             prov = response(order.event)
             if prov.identifier == provider:
                 filename, ttype, data = prov.generate_order(order)
-                if ttype == 'text/uri-list':
-                    continue
-
                 path, ext = os.path.splitext(filename)
                 for ct in CachedCombinedTicket.objects.filter(order=order, provider=provider):
                     ct.delete()