Remove references to device/system family.

[cqc-alec]

This is no longer a thing that devices report.

Fixes #136 .

[cqc-melf]

I think the documentation needs to be updated as well?

See https://cqcl.github.io/pytket-quantinuum/api/index.html#devices
* ``H1``: Submit to Quantinuum ``H1`` machines: job is run on ``H1-1`` or ``H1-2`` based on the soonest available device.

https://github.com/CQCL/pytket-quantinuum/blob/feature/nofamily/docs/intro.txt

[cqc-alec]

I think the documentation needs to be updated as well?

See https://cqcl.github.io/pytket-quantinuum/api/index.html#devices *H1: Submit to Quantinuum H1machines: job is run onH1-1orH1-2based on the soonest available device.

Thanks, done.

[cqc-melf]

And one more: https://github.com/CQCL/pytket-quantinuum/blob/feature/nofamily/pytket/extensions/quantinuum/backends/quantinuum.py#LL196C9-L196C54

[cqc-alec]

And one more: https://github.com/CQCL/pytket-quantinuum/blob/feature/nofamily/pytket/extensions/quantinuum/backends/quantinuum.py#LL196C9-L196C54

Done.

[cqc-melf]

Should we put out a release candidate or a new documentation to make sure this is out soon?

[cqc-alec]

Should we put out a release candidate or a new documentation to make sure this is out soon?

I think we should do a release as soon as #135 is merged, since people are asking for that.