Fix async logging default value

[branic]

What does this PR do?

Removes setting the default for the aap_configuration_collect_logs in every role and sets the default in the only location the variable is used.

How should this be tested?

Manually

Is there a relevant Issue open for this?

No

Other Relevant info, PRs, etc

[branic]

There are a couple of other minor inconsistencies that I also fixed.

[djdanielsson]

Why move away from the defaults file? Just not sure I understand the value of this change

[branic]

To simplify. The same value was being set as the default in every role which is lots of redundant code. This particular variable doesn't have role specific variants so there isn't a need to set it in each role. By specifying the default in the only place it is used ensures that there is always a default (even when new roles are added) and eliminates all the redundant code.

Had I realized I was creating so much duplication when I was working on the PR that introduced the async logging I would have done this then, but there were so many variable changes I didn't see the forest through the trees until I started implementing the async logging change in the infra.controller_configuration collection.

[djdanielsson]

LGTM