[skip ci] Remove queue in main (#8354)

Signed-off-by: shiyu22 <shiyu.chen@zilliz.com>

tests/benchmark/milvus_benchmark/main.py

@@ -4,7 +4,6 @@ import time
 import argparse
 import logging
 import traceback
-# from queue import Queue
 from yaml import full_load, dump
 from milvus_benchmark.metrics.models.server import Server
 from milvus_benchmark.metrics.models.hardware import Hardware
@@ -21,9 +20,6 @@ from logs import log
 log.setup_logging()
 logger = logging.getLogger("milvus_benchmark.main")
 
-# q = Queue()
-
-
 def positive_int(s):
     i = None
     try: