itn on iOS is not supported for the time being (#969)

andyweiqiu

2023-09-21 b8909ab5b94e293605a9e04f42874e0320773a49

 egs/aishell/transformer/utils/prepare_checkpoint.py

@@ -16,3 +16,4 @@
    except BaseException:
        raise BaseException(f"Please download pretrain model from ModelScope firstly.")
    shutil.copy(os.path.join(checkpoint_dir, checkpoint_name), os.path.join(pretrained_model_path, "model.pb"))
    shutil.copy(os.path.join(checkpoint_dir, "config.yaml"), os.path.join(pretrained_model_path, "config.yaml"))