fix lm_inference_launch.py

wucong.lyb

2023-05-22 42e1259075e6cf75c41a2c1826c6af92c353a71f

 egs/aishell/transformer/utils/prepare_checkpoint.py

@@ -1,8 +1,6 @@
import os
import shutil

from modelscope.pipelines import pipeline
from modelscope.utils.constant import Tasks
from modelscope.hub.snapshot_download import snapshot_download