_paramspec_tvars in typing.py does nothing

[JelleZijlstra]

Several classes in typing.py pass around an attribute called _paramspec_tvars, but nothing depends on its value. It was added in b2f3f8e by @Fidget-Spinner to enforce some behavior around ParamSpec, but since then we have apparently loosened that behavior. Let's just remove the attribute.

Linked PRs

• gh-104392: Remove _paramspec_tvars from typing #104393