Remove agent from space, but not scheduler

[Datseris]

@Tortar

the best way is to use Agents.remove_agent_from_space!, this function is unexported but it should do what it says. I think that having this function private is not good for flexibility, because to me it is clear that the space should have its own way to remove ids from it, each different component should have its way to be updated without affecting the other components, in Agents.jl we tie everything to the model, but this is wrong from a design perspective in my opinion.

Yes, good point. We can document it, say that it is called internally by remove_agent! and thus no need to call it then. Then added to the tests and export it. We should create a test with a model that uses this functionality to make sure it works.

Probably open an issue to keep track of it.