Merge pull request #42784 from pegasas/accelerator

Remove DisableAcceleratorUsageMetrics feature gate description in acc…

Author: k8s-ci-robot

content/en/docs/concepts/cluster-administration/system-metrics.md

@@ -119,21 +119,6 @@ If you're upgrading from release `1.12` to `1.13`, but still depend on a metric
 `1.12`, you should set hidden metrics via command line: `--show-hidden-metrics=1.12` and remember
 to remove this metric dependency before upgrading to `1.14`
 
-## Disable accelerator metrics
-
-The kubelet collects accelerator metrics through cAdvisor. To collect these metrics, for
-accelerators like NVIDIA GPUs, kubelet held an open handle on the driver. This meant that in order
-to perform infrastructure changes (for example, updating the driver), a cluster administrator
-needed to stop the kubelet agent.
-
-The responsibility for collecting accelerator metrics now belongs to the vendor rather than the
-kubelet. Vendors must provide a container that collects metrics and exposes them to the metrics
-service (for example, Prometheus).
-
-The [`DisableAcceleratorUsageMetrics` feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
-disables metrics collected by the kubelet, with a
-[timeline for enabling this feature by default](https://github.com/kubernetes/enhancements/tree/411e51027db842355bd489691af897afc1a41a5e/keps/sig-node/1867-disable-accelerator-usage-metrics#graduation-criteria).
-
 ## Component metrics
 
 ### kube-controller-manager metrics