Merge pull request #59727 from wgliang/master.time

Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

should use time.Since instead of time.Now().Sub

**What this PR does / why we need it**:
should use time.Since instead of time.Now().Sub

**Special notes for your reviewer**:

pkg/kubelet/dockershim/libdocker/kube_docker_client.go

@@ -337,7 +337,7 @@ func (p *progressReporter) start() {
 			case <-ticker.C:
 				progress, timestamp := p.progress.get()
 				// If there is no progress for p.imagePullProgressDeadline, cancel the operation.
-				if time.Now().Sub(timestamp) > p.imagePullProgressDeadline {
+				if time.Since(timestamp) > p.imagePullProgressDeadline {
 					glog.Errorf("Cancel pulling image %q because of no progress for %v, latest progress: %q", p.image, p.imagePullProgressDeadline, progress)
 					p.cancel()
 					return