delete useless code

ningmingxiao · ningmingxiao · commit ed0828bb6b0f · 2022-01-18T21:10:20.000+08:00
Signed-off-by: ningmingxiao &lt;ning.mingxiao@zte.com.cn&gt;
diff --git a/cmd/containerd-stress/density.go b/cmd/containerd-stress/density.go
@@ -75,9 +75,6 @@ var densityCommand = cli.Command{
 		s := make(chan os.Signal, 1)
 		signal.Notify(s, syscall.SIGTERM, syscall.SIGINT)
 
-		if err != nil {
-			return err
-		}
 		var (
 			pids  []uint32
 			count = cliContext.Int("count")
