Clean up helm chart after we merge it in.

[davinchia]

Tell us about the problem you're trying to solve

• Clean up the awesome Helm chart contribution from 🎉 Create a Helm Chart For Airbyte #5891 .
• Create an issue summarising Airbyte's next steps with Kubernetes deploys.

Describe the solution you’d like

A clear and concise description of what you want to see happen, or the change you would like to see

Describe the alternative you’ve considered or used

A clear and concise description of any alternative solutions or features you've considered or are using today.

Additional context

Add any other context or screenshots about the feature request here.

Are you willing to submit a PR?

Remove this with your answer :-)

[cgardens]

• understand it
• fix build errors
• deprecate kustomize
• run acceptance tests

[davinchia]

This is old and no longer relevant.