chore(ci): remove workflows for build/push of janus website

[BethGriggs]

[github-actions[bot]]

Hey there and thank you for opening this pull request! 👋🏼

We require pull request titles to follow the Conventional Commits specification and it looks like your proposed title needs to be adjusted.

Details:

Unknown release type "ci" found in pull request title "ci: remove workflows for build/push of janus website". 

Available types:
 - feat
 - fix
 - chore
 - docs
 - style
 - refactor
 - perf
 - test
 - revert

[github-actions[bot]]

Hey there and thank you for opening this pull request! 👋🏼

We require pull request titles to follow the Conventional Commits specification and it looks like your proposed title needs to be adjusted.

Details:

Unknown release type "ci" found in pull request title "ci: remove workflows for build/push of janus website". 

Available types:
 - feat
 - fix
 - chore
 - docs
 - style
 - refactor
 - perf
 - test
 - revert

[nickboldt]

related to RHIDP-1018, sunset of janus.