fix: migrate newspack-theme checkout fixes

[chickenn00dle]

All Submissions:

• Have you followed the Newspack Contributing guideline?
• Does your code follow the WordPress' coding standards and VIP Go coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

Closes https://linear.app/a8c/issue/NPPD-1188/modal-checkout-testing-and-fixes

See Automattic/newspack-plugin#4557

How to test the changes in this Pull Request:

See Automattic/newspack-plugin#4557 for testing instructions

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully ran tests with your changes locally?

[Copilot]

Pull request overview

Removes theme-level WooCommerce checkout presentation tweaks that are being migrated elsewhere (per linked Newspack Plugin work) to avoid duplicating/overriding updated checkout behavior.

Changes:

• Drop Select2 single-select sizing/focus overrides in the checkout styles.
• Remove theme CSS for payment methods UI and the terms/conditions wrapper.
• Remove the theme-added “Payment info” heading injected before the payment section.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
newspack-theme/sass/plugins/woocommerce.scss	Removes checkout-specific CSS overrides for Select2, payment methods, and terms wrapper.
newspack-theme/inc/woocommerce.php	Removes the hook that injected an extra payment heading into checkout.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[laurelfulford]

Thanks @chickenn00dle! Just a couple CSS tweaks here, too, and it should be good to go!

[chickenn00dle]

Also applied your suggestion here. Thank you! Should be good for another round of review.

[laurelfulford]

Thanks @chickenn00dle - looking good!

[github-actions]

Hey @chickenn00dle, good job getting this PR merged! 🎉

Now, the needs-changelog label has been added to it.

Please check if this PR needs to be included in the "Upcoming Changes" and "Release Notes" doc. If it doesn't, simply remove the label.

If it does, please add an entry to our shared document, with screenshots and testing instructions if applicable, then remove the label.

Thank you! ❤️