Remove check for # noqa comments

[plinss]

Fixes #44

[cooperlees]

Do we need to modify the config CI uses now in order to ignore what we use to?

[cooperlees]

Here? https://github.com/PyCQA/flake8-bugbear/blob/master/.flake8#L5

[plinss]

I don't think so, but it does look like I need to update some tests (was having trouble running the tests locally).

It looks like some tests are checking for the # noqa comments working when calling the BugBearChecker directly.

[cooperlees]

All makes sense to me with the explanation.