Domain Transfer - Remove pricing field value when disabled

[agrullon95]

Related to https://github.com/Automattic/dotcom-forge/issues/3268

Proposed Changes

• Remove the "$0" price value under the "Price" column when the field is disabled

Testing Instructions

• Checkout this PR and run it
• Navigate to /setup/domain-transfer/domains
• Verify that the price is no longer displaying when the input fields are empty.
• Add a valid domain/auth code pair and verify the price is displaying correctly.
• Add a domain + random auth code pair and verify the price is displaying correctly.
• Only add a domain and verify the price is not displaying.
• Only add an auth code and verify the price is not displaying.

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-ajp-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-ddf5c71662afcc12429269912026522b4bd7efa5

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:commit-ddf5c71662afcc12429269912026522b4bd7efa5&env=jetpack

[matticbot]

This PR does not affect the size of JS and CSS bundles shipped to the user's browser.

Generated by performance advisor bot at iscalypsofastyet.com.

[escapemanuele]

Working great 👍