[zh] Remove a blog: contribute-as-sig-docs-reviewer

[windsonsea]

Sync with en #46494

Though I love the zh text.

[netlify]

✅ Pull request preview available for checking

Built without sensitive environment variables

Name	Link
🔨 Latest commit	c5940ba
🔍 Latest deploy log	https://app.netlify.com/sites/kubernetes-io-main-staging/deploys/664e829d66a87c0008698723
😎 Deploy Preview	https://deploy-preview-46500--kubernetes-io-main-staging.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[dipesh-rawat]

The removal aligns with the corresponding deletion of the blog from the ‘en’ language.

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 16c74d7ab307e2c426c1bba8d06a8a54799ec6d5

[my-git9]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: my-git9

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• content/zh-cn/OWNERS [my-git9]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment