🎩 What? Why?

Please describe your pull request.

There's an unused route (/organization_users ) to an inexisting controller (users_controller). This PR deletes it.

📌 Related Issues

Link your PR to an issue

• Related to Feature/2589 search engine mvp #3559

Testing

Describe the best way to test or validate your PR.
Go to http://localhost:3000/organization_users
It should give you a "No route matches" (404) instead of a "uninitialized constant Decidim::UsersController" (500)
Weirdly I couldn't reproduce this in production (https://meta.decidim.org/organization_users is a 404)

📋 Checklist

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• ❌AVOID breaking the continuous integration build.
• ❌AVOID making significant changes to the overall architecture.

📷 Screenshots

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Before

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