feat(Radio): remove support for sx

[joshblack]

Closes #6772

Changelog

New

Changed

Removed

• Remove support for sx from Radio

Rollout strategy

• Major release; if selected, include a written rollout or migration plan

This component does not have sx usage in github-ui and other usage is minimal and can be migrated, I think. As a result, we can merge this if github-ui / ci is ✅

[changeset-bot]

🦋 Changeset detected

Latest commit: 16e1e86

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
@primer/react	Major
@primer/styled-react	Major

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[github-actions]

👋 Hi, this pull request contains changes to the source code that github/github depends on. If you are GitHub staff, we recommend testing these changes with github/github using the integration workflow. Thanks!

[github-actions]

size-limit report 📦

Path	Size
packages/react/dist/browser.esm.js	89.52 KB (+0.04% 🔺)
packages/react/dist/browser.umd.js	89.68 KB (+0.1% 🔺)

[Copilot]

Pull Request Overview

This PR removes sx prop support from the Radio component as part of a larger effort to modernize the component API. The change simplifies the component by eliminating the styled-system integration and replacing the BoxWithFallback wrapper with a native input element.

Key Changes:

• Remove SxProp from the RadioProps type definition
• Replace BoxWithFallback wrapper with native input element
• Update component documentation to reflect the removed sx prop

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
packages/react/src/Radio/Radio.tsx	Remove SxProp import and type, replace BoxWithFallback with native input element
packages/react/src/Radio/Radio.docs.json	Remove sx prop from component documentation
.changeset/fair-views-laugh.md	Add changeset entry documenting the breaking change

[Copilot]

The as prop is still documented but the component now uses a native input element directly instead of BoxWithFallback. This prop should likely be removed from the documentation as it may no longer be functional.

[primer-integration]

👋 Hi from github/github-ui! Your integration PR is ready: https://github.com/github/github-ui/pull/2619

[primer-integration]

🟢 ci completed with status success.

[github-actions]

👋 Hi, there are new commits since the last successful integration test. We recommend running the integration workflow once more, unless you are sure the new changes do not affect github/github. Thanks!