Is it possible to disable delivery of stock side of things?

We usally have customers who collect and we are an auto repair garage, we invoice out the service and parts that would be collected on the same day. We don't need a delivery order, we would just need invoice, the stock transaction (to keep stock count) and all the other things.

Is this possible?

I have tried to use sale_automatic_workflow but that still holds on the stock and not process the movement