fix import py310

Signed-off-by: Filinto Duran <[email protected]>

Author: filintod

durabletask/deterministic.py

@@ -19,8 +19,6 @@
 It is shared by both the asyncio authoring model and the generator-based model.
 """
 
-from __future__ import annotations  # noqa: F404
-
 import hashlib
 import random
 import string as _string