Fixes #8659: remove outdated Ezoic Integration conflict notice

[rickydeez]

Description

Removes the admin conflict notice that tells publishers to deactivate the Ezoic Integration plugin.

That notice was added for Ezoic's legacy WordPress HTML/proxy integration (#2200 / #4533), which interfered with page caching. The current Ezoic plugin is JavaScript integration only and does not block WP Rocket caching, so the notice is incorrect for current installs.

Closes #8659

Type of change

• Enhancement (non-breaking change which adds functionality / corrects outdated 3rd-party handling)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have comments to code especially hard-to-understand areas (N/A)
• I have made corresponding changes to the documentation (docs.wp-rocket.me article 1741 still recommends not installing the plugin; worth a separate docs update)
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works (removed the now-obsolete Ezoic conflict integration tests)
• New and existing unit tests pass locally with my changes (not run; change is removal-only)
• Any dependent changes have been merged and published in downstream modules

Additional context

Ezoic docs already note this warning applies only to the legacy method:
https://support.ezoic.com/kb/article/third-party-tools-javascript-integration

[Copilot]

Pull request overview

Removes the legacy Ezoic Integration “conflicting plugin” admin notice and its wiring, since the current Ezoic plugin no longer blocks WP Rocket caching (JS integration only).

Changes:

• Removed the Ezoic third-party subscriber that added the conflict + custom explanation.
• Unregistered the Ezoic service from the ThirdParty ServiceProvider and from the plugin’s common subscriber initialization.
• Removed the now-obsolete Ezoic integration tests covering the conflict filters.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/Integration/inc/ThirdParty/Plugins/Optimization/Ezoic/addExplanations.php	Removed integration test for the Ezoic conflict explanation filter output.
tests/Integration/inc/ThirdParty/Plugins/Optimization/Ezoic/addConflict.php	Removed integration test for the Ezoic conflict plugin list filter output.
inc/ThirdParty/ServiceProvider.php	Unregistered the ezoic service (no longer provided or registered in the container).
inc/ThirdParty/Plugins/Optimization/Ezoic.php	Deleted the Ezoic conflict subscriber implementation (no longer adds conflict/explanation).
inc/Plugin.php	Removed ezoic from the common subscriber initialization list.

[codacy-production]

Up to standards ✅

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