Cannot remove `service_at_location` in a profile

[francois-travais]

Context

In my profile I would like to remove the service_at_location because I've no use for it.
In Soliguide our services are always linked to a physical location, therefore all the information that may live in service_at_location is either in service or location.

Problem

hsds_schema.py is expecting a service_at_location, otherwise it fails to compile the schema. I had to comment these lines.

Question

I'm wandering maybe the problem is that I shouldn't remove service_at_location in the first place. I can have one for sure, it's just that it would be a useless piece linking services and locations.

[devinbalkind]

The service directories we produce using the ORServices and HSDS Airtable templates also link services directly to address so we don't use service_at_location table. For ORServices exports we have generate data for an service_at_location table to pass validation and move data to other HSDS systems.

It might be worth considering making service_at_locations table optional in a future release of the standard.