Active model serializer deprication smash

app/serializers/user_list_serializer.rb

@@ -1,6 +1,5 @@
 class UserListSerializer < Qwaiter::Serializer
   # user ids for facebook pictures
-  embed :ids, include: true
   attributes :state, :needs_help, :needs_payment, :user_requests_closing,
     :is_paid, :price, :table_id, :table_number, :section_id, :user_ids,
     :cached_supplier_name, :closed_at, :supplier_id, :extended_version