Remove large size options from SegmentedControl

[jonrohan]

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What are you trying to accomplish?

Closes https://github.com/github/primer/issues/3018

This removes the size: :large option from the segmented control. I looked at all uses of this component and none used :large

Integration

No, but a quick double check that a size :large didn't sneak in before merging.

Risk Assessment

• Low risk the change is small, highly observable, and easily rolled back.
• Medium risk changes that are isolated, reduced in scope or could impact few users. The change will not impact library availability.
• High risk changes are those that could impact customers and SLOs, low or no test coverage, low observability, or slow to rollback.

Merge checklist

• Added/updated tests
• Added/updated documentation
• Added/updated previews (Lookbook)
• Tested in Chrome
• Tested in Firefox
• Tested in Safari
• Tested in Edge

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[changeset-bot]

🦋 Changeset detected

Latest commit: 16f9eaa

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

This PR includes changesets to release 1 package

Name	Type
@primer/view-components	Minor

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[camertron]

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