Remove obsolete TODOs.

PiperOrigin-RevId: 672552445

Author: isingoo

nisaba/scripts/natural_translit/utils/type_op.py

@@ -18,8 +18,6 @@
 converting types and attributes, and returning default values when required.
 Avoids equating NoneTypes in comparisons. For example if a.features = None and
 b.features = None, a and b won't be evaluated as having the same features.
-
-TODO(): Fix typing in natural_translit.
 """
 
 from typing import Any, Iterable, Type, TypeVar, Union
@@ -212,8 +210,6 @@ class IterableThing(Thing):
     flattened.
   `MISSING in iterable2` returns `False`.
 
-  TODO: Move type_op and list_op functions to IterableThing where
-    possible.
   """
 
   def __init__(