chore(repo): Delete unused page object

[dstaley]

Description

This PR deletes a page object that was not deleted in #5661 (since it's now in the @clerk/testing package).

Checklist

• pnpm test runs as expected.
• pnpm build runs as expected.
• (If applicable) JSDoc comments have been added or updated for any package exports
• (If applicable) Documentation has been updated

Type of change

• 🐛 Bug fix
• 🌟 New feature
• 🔨 Breaking change
• 📖 Refactoring / dependency upgrade / documentation
• other:

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
clerk-js-sandbox	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 25, 2025 6:08pm

[changeset-bot]

⚠️ No Changeset found

Latest commit: 24cd53e

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