Juju 3: remove uuid fields from cmd output

[Anastasia]

There are some commands that display more than one entity with uuid.

For example, 'controllers' and 'show-controller' display uuids for both models and controllers.
Some work has been done to disambiguate - what uuid are we talking about: controller-uuid or model-uuid (see bug # 1596607). However, for backward compatibility the old fields had to be preserved (see bug # 1786061).

We need to remove these old ''uuid' fields when we go to Juju 3.0.

[Anastasia (anastasia-macmood)]

This may be applicable to the output from other commands. Worth a check when we come to do this work.

[Canonical Juju QA Bot (juju-qa-bot)]

This bug has not been updated in 2 years, so we're marking it Low importance. If you believe this is incorrect, please update the importance.