[skip ci]Remove useless code (#8184)

Signed-off-by: yanliang567 <yanliang.qiao@zilliz.com>

tests/python_client/chaos/chaos_commons.py

@@ -1,7 +1,6 @@
 import os
 import threading
 import glob
-import delayed_assert
 from chaos import constants
 from yaml import full_load
 from utils.util_log import test_log as log
@@ -68,5 +67,4 @@ def get_chaos_yamls():
 
 
 def reconnect(connections, alias='default'):
-    # conn.add_connection(default={"host": host, "port": port})
     return connections.connect(alias=alias)