[docs] [issue22883] Get rid of references to PyInt in Py3 sources

Changes by Serhiy Storchaka <storchaka@gmail.com>: ---------- assignee: -> docs@python components: +Documentation -Extension Modules, Interpreter Core nosy: +docs@python _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue22883> _______________________________________