[Doc]: Remove 404 hyperlinks

[rozeappletree]

The hyperlinks in the examples page lead to 404 links (listed below):

• Offline Inference: https://docs.vllm.ai/en/stable/examples/offline_inference (404)
• Online Serving: https://docs.vllm.ai/en/stable/examples/online_serving (404)
• Others: https://docs.vllm.ai/en/stable/examples/others (404)

two ways to go about this:

1. Either add a placeholder page with placeholder content until actual content is ready

(or)

2. Remove the invalid links.

This PR takes approach 2 and removes the invalid links.

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[gemini-code-assist]

Code Review

This pull request aims to fix broken links in the examples documentation by removing them. While this resolves the 404 errors, it also removes useful navigation for users. A better approach would be to fix the link destinations, as the content for 'Offline Inference' and 'Online Serving' appears to exist elsewhere in the documentation, and the 'Others' section can link to the relevant examples directory. I've provided a suggestion to update the links accordingly.

[DarkLight1337]

Thanks, this approach seems good to me

[hmellor]

LGTM too! Manual ToC is a bit off a hangover from when we used Sphinx.

Ideally we would not maintain any nav information in the page content like this.