DEPR: Removed styler shim
Hello @TomAugspurger! Thanks for submitting the PR.

 - There are no PEP8 issues in the file [`pandas/tests/io/formats/test_style.py`](https://github.com/TomAugspurger/pandas/blob/9d496a789c62e9a1fe2f15356864843d9faf081d/pandas/tests/io/formats/test_style.py) !

