Fix cni documentation

[0ekk]

Signed-off-by: tu1h lihai.tu@daocloud.io

What type of PR is this?
/kind documentation

What this PR does / why we need it:
According to https://kubernetes.io/docs/concepts/extend-kubernetes/compute-storage-net/network-plugins/#installation, the management of the CNI had been removed from kubelet since kubernetes v1.24.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Remove stale contents for cni documention

[k8s-ci-robot]

Hi @tu1h. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[floryut]

@tu1h Thank you for the PR 🥳

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, tu1h

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[floryut]

/ok-to-test

[oomichi]

/lgtm