Align pylintrc with the one used by TFX

[TheMichaelHu]

In #63 we needed to modify the original pylintrc to ignore super-with-arguments in order to get the sklearn examples to pass pre-commit checks.

Fix the linter errors in the sklearn example and remove the change that was added to pylint configs.

[rcrowe-google]

@casassg FYI for comment

[casassg]

yup. We talked about this in #63

That said, super-with-arguments is not a terrible thing to have either, so I would be fine by keeping it (actually TFX does use some of those as well it seems)