Fix multiple identical imports (zarr-developers#2241)

Author: DimitriPapadopoulos

src/zarr/core/array.py

@@ -9,7 +9,6 @@
 import numpy.typing as npt
 
 from zarr._compat import _deprecate_positional_args
-from zarr.abc.codec import Codec, CodecPipeline
 from zarr.abc.store import set_or_delete
 from zarr.codecs import BytesCodec
 from zarr.codecs._v2 import V2Compressor, V2Filters

src/zarr/store/memory.py

@@ -1,6 +1,5 @@
 from __future__ import annotations
 
-from collections.abc import AsyncGenerator, MutableMapping
 from typing import TYPE_CHECKING
 
 from zarr.abc.store import Store

tests/v3/test_store/test_remote.py

@@ -2,7 +2,6 @@
 
 import json
 import os
-from collections.abc import Generator
 from typing import TYPE_CHECKING
 
 import fsspec