Remove unused imports

freqtrade/persistence/custom_data.py

@@ -1,5 +1,5 @@
 from datetime import datetime
-from typing import ClassVar, Optional, Self, Sequence
+from typing import ClassVar, Optional, Sequence
 
 from sqlalchemy import DateTime, ForeignKey, Integer, String, Text, UniqueConstraint, select
 from sqlalchemy.orm import Mapped, mapped_column, relationship

freqtrade/persistence/custom_data_middleware.py

@@ -3,8 +3,6 @@ import logging
 from datetime import datetime
 from typing import Any, List, Optional
 
-from sqlalchemy import select
-
 from freqtrade.persistence.custom_data import CustomData