Draft: Removal of the five_minute_production_app related code

What does this MR do and why?

Resolves #478491.

The five_minute_production_app category has no owner anymore.

The incubation_5mp_google_cloud is enabled in production. I wonder if it is still in use 🤔

The closest match is the cloud-seed. Asked on slack channel https://gitlab.slack.com/archives/C01DCTJFA4T/p1723625818513159, without response.

Anybody opposed to this removal? Is it still in use? Who's the owner?

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