chore: hard-deprecate connector generator script

[natikgadzhi]

What

This pull request removes the ./generate connector generator script and it's templates. The script used Node 16 and required Docker to make new connectors — it's 4 years old.

• For Python connectors, we want to nudge people to start with Connector Builder always. We might want to implement a flow in Builder that would dump the full connector directory on disk so the user can add a pyproject.toml file, but as it's an advanced flow, we're fine removing the generators without this in place.
• For Java connectors, existing generator templates are outdated anyway, and we don't want people to use them.

Closes https://github.com/airbytehq/airbyte-internal-issues/issues/11926

How

1. Removed generators
2. Removed all references to them in documentation.
3. Removed 2 python connector guides that are no longer up to date or relevant.

Review guide

Click around docs site preview on Vercel.

User Impact

None.

Can this PR be safely reverted and rolled back?

• YES 💚
• NO ❌

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
airbyte-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 16, 2025 9:34pm

[natikgadzhi]

Automerge on.

[ian-at-airbyte]

Docs component looks good to me I think. I left a couple of minor suggestions. Since automerge is on, I will not explicitly approve but consider this my approval.

[ian-at-airbyte]

This is not a problem related to this set of changes, but it's applicable anyway.

We're using the displayed_sidebar: docs metadata, but this file has not been added to docusaurus/sidebars.js. I think it would be better to do the latter and not the former. That way the topic has a "real" home on the site.