remove pycodestyle

[brian-smith-tcril]

To the best of my understanding, running pycodestyle is redundant. The CI already runs pylint, which properly reads the pylintrc. pycodestyle, however, is using pep8. These conflicting rules have made it so a workaround for line length was needed to get all the CI tests to pass.

To avoid issues like this in the future, we should simply remove pycodestyle.