[skip ci] Comment out unused import (#9353)

Signed-off-by: NThreadDao <yufen.zong@zilliz.com>

tests/python_client/testcases/test_config.py

-import time
-import random
-import pdb
-import threading
-import logging
-from multiprocessing import Pool, Process
-import pytest
-from utils.utils import *
-import ujson
+# import time
+# import random
+# import pdb
+# import threading
+# import logging
+# from multiprocessing import Pool, Process
+# import pytest
+# from utils.utils import *
+# import ujson
 
 # CONFIG_TIMEOUT = 80