message: Remove useless log code.
diff: @@ -9,12 +9,6 @@ $pm = new ProcessManager;
  $pm->setRandomFunc('mt_rand');
  $pm->initRandomDataEx(1, MAX_REQUESTS, 0, 65535);
  $pm->parentFunc = function () use ($pm) {
  -
  - Co::set([
  - 'log_level' => SWOOLE_LOG_DEBUG,
  - 'trace_flags' => SWOOLE_TRACE_ALL ^ SWOOLE_TRACE_EVENT,
  - ]);
  -
  go(function () use ($pm) {
  $client = new Swoole\Coroutine\Client(SWOOLE_SOCK_TCP);
  $client->set([
  