Scrub reviewers in Accessibility WPT directories

[cookiecrook]

wpt-pr-bot auto-assigned michael cooper as a reviewer on this issue.

• [core-aam] Find the test document without the embeds relation wpt#62251

I took an action to file this issue: remove michael (and any other inactive wpt contributors) from the auto-assigned reviewers lists associated with the accessibility directories in WPT...