Revert "pep8ify more examples in examples/ + use np.radians/np.degrees"
Merge pull request #3200 from matplotlib/revert-3182-pep8examplesapiv2

Revert "pep8ify more examples in examples/ + use np.radians/np.degrees"
Revert "[examples/api] autopep8 + use np.radians/np.degree where appropriate"
Merge pull request #3201 from matplotlib/revert-3181-pep8examplesapi

Revert "[examples/api] autopep8 + use np.radians/np.degree where appropr...