Delete unused import (#8079)

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

tests/python_client/common/common_func.py

@@ -10,7 +10,6 @@ from pymilvus import DataType
 from base.schema_wrapper import ApiCollectionSchemaWrapper, ApiFieldSchemaWrapper
 from common import common_type as ct
 from utils.util_log import test_log as log
-import threading
 import traceback
 
 """" Methods of processing data """

tests/python_client/common/cus_resource_opts.py

@@ -1,7 +1,6 @@
 from __future__ import print_function
 from kubernetes import client, config
 from kubernetes.client.rest import ApiException
-from chaos import constants as cf
 from utils.util_log import test_log as log
 
 _GROUP = 'milvus.io'

tests/python_client/testcases/entity/test_query.py

@@ -1,6 +1,3 @@
-import pdb
-import logging
-
 import pytest
 from pymilvus import DataType