cleanup: remove deprecated underline attribute

[khiga8]

Small change to clean up deprecated underline attributes!

I was getting bothered in storybook files that this underline attribute is deprecated, but it's used in many examples.

Let's clean this up so developers don't add undesirable usage in their code when copying examples from Primer's storybook.

Changelog

New

Changed

Removed

• Removed undesirable underline attribute usage in stories.

Rollout strategy

• Patch release
• Minor release
• Major release; if selected, include a written rollout or migration plan
• None; if selected, include a brief description as to why

Testing & Reviewing

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Storybook)
• Changes are SSR compatible
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge
• (GitHub staff only) Integration tests pass at github/github (Learn more about how to run integration tests)

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Latest commit: 0acefdf

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[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	104.25 KB (0%)
packages/react/dist/browser.umd.js	104.56 KB (0%)