Remove unused import

aleksis/core/util/core_helpers.py

@@ -2,7 +2,6 @@ import os
 from datetime import datetime, timedelta
 from importlib import import_module, metadata
 from itertools import groupby
-from logging import Filter
 from operator import itemgetter
 from typing import Any, Callable, Dict, Optional, Sequence, Union
 from warnings import warn