gh-106320: Don't export _Py_ForgetReference() function (#108712)

There is no need to export the _Py_ForgetReference() function of the
Py_TRACE_REFS build. It's not used by shared extensions. Enhance also
its comment.

Victor Stinner committed 2y ago

194c6fb85e02ecbb1eedb26601e9d503c4d25174

Parent: 9c03215

Committed by GitHub <noreply@github.com> on 8/31/2023, 9:15:31 AM