docs: remove old css color tokens

[kumarivijeta]

Summary

Updated Foundation version 1.10.0

ADO Story or GitHub Issue Link

https://dev.azure.com/Kyndryl/Shidoka%20-%20Bridge%20Design%20System/_workitems/edit/1931328

Checklist

• [x] Used Conventional Commit messages as outlined in the contributing guide.
  • [ ] Noted breaking changes (if any).
• [ ] Documented/updated all props, events, slots, parts, etc with JSDoc.
  • [x] Ran the analyze command to update Storybook docs.
• [ ] Added/updated Stories with controls to cover all variants.
• [ ] Ran test locally to address any failures.
• [ ] Added/updated the Figma link for the Story's Design tab.
• [ ] Added any new component exports to the src/index.ts file

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[kumarivijeta]

We actually do want to keep the Color Palettes page in Storybook, to show the different palettes. Sorry if I was unclear.

Got confused. My bad. I put it Color Palettes back :)

[brian-patrick-3]

:tada: This PR is included in version 1.7.0-next.1 :tada:

The release is available on:

• npm package (@next dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: