REF: avoid maybe_convert_platform
- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] Ensure all linting tests pass, see [here](https://pandas.pydata.org/pandas-docs/dev/development/contributing.html#code-standards) for how to run them
- [ ] whatsnew entry

After this it is exclusively used in core.construction and core.internals.construction
i think this had a failure on the 32bit builds, just needed to change the regex being tested.  will make a follow up now