remove unneeded imports

Author: TomNicholas

numcodecs/zarr3.py

@@ -28,10 +28,9 @@
 import asyncio
 import math
 from dataclasses import dataclass, replace
-from functools import cached_property, partial
-from typing import Any, Self, TypeVar
+from functools import cached_property
+from typing import Any, Self
 from warnings import warn
-import textwrap
 
 import numpy as np