fixup! fix: revert default date-time behaviour

Author: mueslo

src/datamodel_code_generator/parser/jsonschema.py

@@ -431,7 +431,7 @@ def __init__(  # noqa: PLR0913
         treat_dot_as_module: bool = False,
         use_exact_imports: bool = False,
         default_field_extras: dict[str, Any] | None = None,
-        target_datetime_class: DatetimeClassType | None = DatetimeClassType.Awaredatetime,
+        target_datetime_class: DatetimeClassType | None = None,
         keyword_only: bool = False,
         frozen_dataclasses: bool = False,
         no_alias: bool = False,

src/datamodel_code_generator/parser/openapi.py

@@ -214,7 +214,7 @@ def __init__(  # noqa: PLR0913
         treat_dot_as_module: bool = False,
         use_exact_imports: bool = False,
         default_field_extras: dict[str, Any] | None = None,
-        target_datetime_class: DatetimeClassType | None = DatetimeClassType.Awaredatetime,
+        target_datetime_class: DatetimeClassType | None = None,
         keyword_only: bool = False,
         frozen_dataclasses: bool = False,
         no_alias: bool = False,