Remove granite-code-cookbook references

[bjhargrave]

The granite-code models are gen 2 and the granite-code-cookbook recipes are not maintained. The granite-code-cookbook will soon be archived.

[serjikibm]

In the Cookbooks tab, under the Granite Code Cookbook section I see only the following two sections, which your PR removes. However I can't find the content in the md files, unless I search for them. Were they available in the side nav in the past and was dropped as a result of the migration? I am asking to make sure we are not missing other nav items. I haven't pulled the PR to test it locally yet.

[bjhargrave]

The PR removes those 2 pages: use-cases/text-to-*. They are available on the side nav bar before this PR.

[serjikibm]

There are no other references int he docs to these pages (AI validation confirmed)

Also after running locally, the Granite Code Cookbook navigation item is removed. No errors in the console. As mentioned by the author, the content being referenced is also going to be archived later.

Before the change

After the change

[serjikibm]

LGTM

[serjikibm]

@planetf1 any concerns before merging this PR?

This is the first round of contributions by document maintainers, post migration.

[planetf1]

• The migration was correct. I did a page-by-page check before the cutover — all 42 Mintlify nav pages were ported faithfully, no granite-code content was dropped. That said, the migration was process-based not editorial, so it preserved whatever was there rather than making any judgements about relevance.
• text-to-python and text-to-shell are live public pages — they were in the old Mintlify nav and are in the current Docusaurus sidebar, so users can reach them right now.
• code.mdx, granite-code-on-replicate, and granite-code-with-continue were never in the Mintlify nav. They've been suppressed (displayed_sidebar: null) since the migration and are tracked in Content review: reconnect 6 pages suppressed during Mintlify migration #66 — which notes that code.mdx looks like an authoring oversight and suggests adding it to the Models sidebar.

The intent here looks right — gen-1 models are superseded and removing those references keeps the docs useful and relevant. One thing worth flagging: Text_to_Python.ipynb has already been updated to use granite-3.3-8b-instruct, so not all the cookbook content is gen-1. If we're happy removing the 3.3 material too (reasonable given there's no other gen-3 cookbook content), then the removal is clean.

It's also worth noting the cookbook repo itself has no Granite 4 examples yet — is there a plan to add those? is it a gap that needs filling?

One minor thing - do we want any additional link redirects from old pages to somewhere on the site (we already have a custom 404 though)

[planetf1]

All good to merge