[skip e2e] Delete unused codes on locust_user file (#15082)

Signed-off-by: wangting0128 <ting.wang@zilliz.com>

tests/benchmark/milvus_benchmark/runners/locust_user.py

@@ -60,7 +60,6 @@ def locust_executor(host, port, collection_name, connection_type="single", run_p
     tasks = run_params["tasks"]
     for op, value in tasks.items():
         # task = {eval("Tasks." + op): value["weight"]}
-        # MyUser.tasks.update(task)
         for i in range(int(value["weight"])):
             MyUser.tasks.append(eval("Tasks." + op))
         MyUser.params[op] = value["params"] if "params" in value else None