Remove sx props and BoxWithFallback from TooltipV2 and Tooltip

[liuliu-dev]

Closes #5769

• Note: Multiple repos are still using sx props with Tooltip .

Changelog

Removed

Removed sx props from deprecated Tooltip and TooltipV2

Rollout strategy

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

[changeset-bot]

🦋 Changeset detected

Latest commit: 925c38e

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

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[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	89.86 KB (+0.02% 🔺)
packages/react/dist/browser.umd.js	89.95 KB (-0.06% 🔽)

[Copilot]

Pull Request Overview

This PR removes the deprecated sx prop support from both Tooltip and TooltipV2 components as part of a major release. The changes align with the design system's move away from styled-system props in favor of more maintainable styling approaches.

Key Changes

• Removed sx prop from both Tooltip and TooltipV2 component type definitions
• Replaced BoxWithFallback with native span element in TooltipV2
• Cleaned up styled-components integration in legacy Tooltip

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
packages/react/src/TooltipV2/Tooltip.tsx	Removed SxProp import and type, replaced BoxWithFallback with span
packages/react/src/TooltipV2/Tooltip.docs.json	Removed sx prop from component documentation
packages/react/src/Tooltip/Tooltip.tsx	Removed SxProp type and sx function from styled-component
packages/react/src/Tooltip/Tooltip.docs.json	Removed sx prop from component documentation
.changeset/pink-rockets-win.md	Added changeset entry for major version bump