fix arguments (#1026)

Author: Jintao-Huang

swift/llm/utils/argument.py

@@ -1070,7 +1070,6 @@ def __post_init__(self) -> None:
             self.load_from_ckpt_dir()
         else:
             assert self.load_dataset_config is False, 'You need to first set `--load_args_from_ckpt_dir true`.'
-        self.handle_compatibility()
         self._handle_dataset_sample()
         self.handle_custom_register()
         self.handle_custom_dataset_info()