[Python-Dev] Clean up Python/thread_*.h ?

["Martin v. Löwis"]

> Making a decision and removing the files considered unnecessary would clarify
> what platforms still are/should be supported.

I think any such removal should go through the PEP 11 process. Put a
#error into the files for 3.2, and a removal notice into the PEP, then
remove them in 3.3.

As for OS/2: this should probably stay.

Regards,
Martin