Fix cadvisor machine metrics

Signed-off-by: Ling Samuel <lingsamuelgrace@gmail.com>

pkg/kubelet/kubelet.go

@@ -551,6 +551,9 @@ func NewMainKubelet(kubeCfg *kubeletconfiginternal.KubeletConfiguration,
 	if err != nil {
 		return nil, err
 	}
+	// Avoid collector collects it as a timestamped metric
+	// See PR #95210 and #97006 for more details.
+	machineInfo.Timestamp = time.Time{}
 	klet.setCachedMachineInfo(machineInfo)
 
 	imageBackOff := flowcontrol.NewBackOff(backOffPeriod, MaxContainerBackOff)