[skip e2e] Delete unused codes of update file on benchmark (#13596)

Signed-off-by: Nwangting0128 <ting.wang@zilliz.com>

tests/benchmark/milvus_benchmark/update.py

@@ -162,7 +162,6 @@ def update_values(src_values_file, deploy_params_file):
     print("[benchmark update] deploy_mode: %s" % str(deploy_mode))
 
     cluster = False
-    # values_dict["service"]["type"] = "ClusterIP"
     if deploy_mode in [config.CLUSTER_DEPLOY_MODE, config.CLUSTER_3RD_DEPLOY_MODE]:
         cluster = True
         # values_dict["cluster"]["enabled"] = True