[skip e2e]Fix connection (#18024)

Signed-off-by: Nzhuwenxing <wenxing.zhu@zilliz.com>

tests/python_client/chaos/chaos_commons.py

@@ -70,9 +70,7 @@ def get_chaos_yamls():
 
 def reconnect(connections, alias='default'):
     """trying to connect by connection alias"""
-    res = connections.get_connection_addr(alias)
-    connections.remove_connection(alias)
-    return connections.connect(alias, host=res["host"], port=res["port"])
+    return connections.connect(alias)
 
 
 def assert_statistic(checkers, expectations={}):