typeshed: remove crufty comments (#4699)

Co-authored-by: hauntsaninja <>

stdlib/3/unittest/__init__.pyi

@@ -1,5 +1,3 @@
-# Stubs for unittest
-
 from typing import Optional
 from unittest.async_case import *
 from unittest.case import *

stdlib/3/unittest/util.pyi

@@ -1,4 +1,3 @@
-# undocumented
 from typing import Any, List, Sequence, Tuple, TypeVar
 
 _T = TypeVar("_T")