Retire product devfile registry

[elsony]

Which area this feature is related to?

/area registry

Which functionality do you think we should add?

Retire the devfile product registry https://devfile-registry.redhat.com/ .

Why is this needed? Is your feature request related to a problem?
To reduce the long term maintenance.

Detailed description:

Describe the solution you'd like

Things to cover:

• Communicate with the JBoss team to notify. They can reach out to the Dev Spaces team that is currently planning on keeping their list of supported devfile configured via ConfigMap.
• Take down the product registry
• Take down the product registry viewer
• Archive the product registry repo
• Offboading the product registry from App-SRE

Describe alternatives you've considered

Additional context