Deprecation: Pre-Design-Tokens brand package support

We plan to deprecate pre-design-tokens brand packages.

This will happen as MFEs are upgraded to use design tokens. The PRs upgrading MFEs to use design tokens will begin to be merged after the Sumac release is cut.

See the DEPR ticket for more details [DEPR] Branding without design tokens · Issue #23 · openedx/brand-openedx · GitHub

If you have concerns/questions/thoughts please share them on the GH issue! The goal is to finalize the DEPR on 2024-08-02T04:00:00Z