chore(crds): 🗑️ remove deprecated traefik-crds chart

[darkweaver87]

What does this PR do?

This PR removes deprecated chart.

Motivation

Ease maintenance.

More

• Yes, I updated the tests accordingly
• Yes, I updated the schema accordingly
• Yes, I ran make test and all the tests passed

[DrummyFloyd]

can we be sure, that every feature from traefik-crds are supported in
traefik helm chart to avoid any hard migration ?

# yaml-language-server: $schema=https://raw.githubusercontent.com/traefik/traefik-helm-chart/refs/heads/master/traefik-crds/values.schema.json
enabled: true
traefik: true
gatewayAPI: false
gatewayAPIExperimental: true # is this functionnal on traefik helm chart ? 
knative: false
hub: false # is this functionnal on traefik helm chart ? 
deleteOnUninstall: false

thank you

[mloiseleur]

@DrummyFloyd AFAIK, it's not really possible with the current feature set of Helm. Our current plan is mainly to document how to proceed. If you know a better way to face this challenge, you are welcome to open a PR and show us the code.