Update setup.cfg (#2534)

Author: Khabib73

setup.cfg

@@ -61,8 +61,6 @@ per-file-ignores =
   returns/contrib/pytest/__init__.py: F401
   returns/contrib/pytest/plugin.py: WPS201, WPS402, WPS430, WPS437
   returns/contrib/hypothesis/*.py: WPS437
-  # TODO: remove after mypy@0.800
-  returns/contrib/mypy/_typeops/visitor.py: S101, WPS232
   # Allow class attributes literals for slots and setattr:
   returns/primitives/container.py: WPS226
   # There are multiple assert's in tests: