Connection: optimize admin_notices owner delete warning

[sergeymitr]

Proposed changes:

• Optimize the admin_notices hook conditions to get rid of an excessive callback.

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

https://github.com/Automattic/vulcan/issues/529

Does this pull request change what data or activity we track or use?

No.

Testing instructions:

1. Connect Jetpack, create another WP user.
2. Login under that user, go to "Users" and try to delete the connection owner. You should see a notice suggesting you to connect first.
3. Use the notice to connect as secondary user, try to delete connection owner again. Now you should see a notice suggesting you to switch connection owner to yourself.
4. Switch the connection owner, try to delete that ex-connection owner. You will see no notice and should be able to delete them easily.

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WordPress.com Simple site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin, and enable the update/optimize-connection-admin-notice-hook branch.

  • For jetpack-mu-wpcom changes, also add define( 'JETPACK_MU_WPCOM_LOAD_VIA_BETA_PLUGIN', true ); to your wp-config.php file.

• To test on Simple, run the following command on your sandbox:

  bin/jetpack-downloader test jetpack update/optimize-connection-admin-notice-hook
  

  bin/jetpack-downloader test jetpack-mu-wpcom-plugin update/optimize-connection-admin-notice-hook
  

Interested in more tips and information?

• In your local development environment, use the jetpack rsync command to sync your changes to a WoA dev blog.
• Read more about our development workflow here: PCYsg-eg0-p2
• Figure out when your changes will be shipped to customers here: PCYsg-eg5-p2

[github-actions]

Thank you for your PR!

When contributing to Jetpack, we have a few suggestions that can help us test and review your patch:

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• ✅ Add changelog entries to affected projects
  

This comment will be updated as you work on your PR and make changes. If you think that some of those checks are not needed for your PR, please explain why you think so. Thanks for cooperation 🤖

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