Cache is cleared for async features RUCSS & Load CSS Asynchronously upon activation

[vmanthos]

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Describe the bug

When activating the following features:

• Remove Unused CSS
• Load CSS Asynchronously

we clear the whole cache as we do when activating other features that affect the front-end.

Given that for Remove Unused CSS we are clearing the cache of a URL as soon as the used CSS has been created: https://github.com/wp-media/wp-rocket/blob/8ca1fb5bf5b67c0fe6e3b7087fa04e4e0efb4348/inc/Engine/Cache/PurgeActionsSubscriber.php#L53

and for Load CSS Asynchronously we clear the cache when the critical CSS generation process is complete: https://github.com/wp-media/wp-rocket/blob/8ca1fb5bf5b67c0fe6e3b7087fa04e4e0efb4348/inc/Engine/CriticalPath/Admin/Admin.php#L189

we don't need to clear the cache upon activating the two features.

To Reproduce N/A

Expected behavior

Do not clear the cache when activating Remove Unused CSS and Load CSS Asynchronously.

Screenshots N/A

Additional context N/A

Backlog Grooming (for WP Media dev team use only)

• [ ] Reproduce the problem
• [ ] Identify the root cause
• [ ] Scope a solution
• [ ] Estimate the effort

[mostafa-hisham]

Reproduce the issue :heavy_multiplication_x:

No need to reproduce

Scope a solution :white_check_mark:

after talking with @vmanthos we need to add remove_unused_css , async_css , optimize_css_delivery options in $removed array only if remove_unused_css OR async_cssare activated to not clean the cache domain after they are enabled

https://github.com/wp-media/wp-rocket/blob/b39567786ccc5c321ace147e1ff9dcfaa6fa2eed/inc/admin/options.php#L19-L25

Estimate the effort :white_check_mark:

Effort [XS]

[piotrbak]

We won't be fixing it, based on Vasilis comment here: https://github.com/wp-media/wp-rocket/pull/5391#issuecomment-1243426262