[python linting] apply aggressive mode in autopep8 (line wrapping)
This adds the aggressive mode and then applies all sugggested
changes. Also I've removed the .autopep8 file, as I think it's
better to put things in the arclint file.
These are all just whitespace changes.
To fully reproduce these changes, install autopep8 1.5 and pycodestyle 2.5.0 (most
recent) which catches a few more things than the linux distro
versions. Older versions are happy with the result, but they
will suggest slightly fewer changes it seems.
ninja check-extended arc lint --everything
Reviewers: #bitcoin_abc, deadalnix
Reviewed By: #bitcoin_abc, deadalnix
Differential Revision: https://reviews.bitcoinabc.org/D5217