[issue39542] Cleanup object.h header

[STINNER Victor]

Change by STINNER Victor <vstinner at python.org>:


----------
keywords: +patch
pull_requests: +17704
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/18331

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39542>
_______________________________________