Remove React 17 requirement for certain features #7489
Description
Feature Description
Let's undo aspects of #7421 which made certain services dependent on React 17. As seen in the below Make/Core post, any React 17 code will continue to work with React 18 by invoking a legacy API:
In particular, this is considering the following line (at least):
amp-wp/src/Admin/AfterActivationSiteScan.php
Line 104 in f8249c1
Related: #7394
Acceptance Criteria
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Implementation Brief
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QA Testing Instructions
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Demo
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Changelog Entry
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