Remove unused imports

Author: lord-haffi

src/bo4e/com/rechnungsposition.py

@@ -5,7 +5,6 @@
 # pylint: disable=too-few-public-methods, too-many-instance-attributes
 from typing import TYPE_CHECKING, Annotated, Literal, Optional
 
-import pydantic
 from pydantic import Field
 
 from ..enum.comtyp import ComTyp

src/bo4e/com/zahlungsinformation.py

@@ -2,7 +2,6 @@
 Contains Zahlungsinformation class
 """
 
-from decimal import Decimal
 from typing import TYPE_CHECKING, Annotated, Literal, Optional
 
 from pydantic import Field