Live Preview: Remove the redundant tooltip

[okmttdhr]

Related to #

Proposed Changes

This PR removes the tooltip initially added for accessibility purposes. Given that its purpose overlaps with the button, we think it might be beneficial to remove this tooltip to avoid confusion temporarily. https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/tooltip_role#accessibility_concerns

We'll explore alternative ways to display the shortcut key when we have the bandwidth. #87619

The accessibility tree:

Related:
#85013 (comment)
#87584 (comment)

Testing Instructions

• Patch this PR
• Sandbox your site and widgets.wp.com
• Prepare a free site
• Live-preview a premium plan
• Mouseover the Upgrade button

before	after

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• https://wpcalypso.wordpress.com/devdocs/docs/testing/index.md 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-aUh-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-98143

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-98143&env=jetpack

[matticbot]

This PR modifies the release build for the following Calypso Apps:

For info about this notification, see here: PCYsg-OT6-p2

• wpcom-block-editor

To test WordPress.com changes, run install-plugin.sh $pluginSlug update/live-preview-remove-tooltip on your sandbox.

[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.

[taipeicoder]

LGTM 👍