Removed overflow-block optional-paged value and reftesting as it was removed from the spec in 2020: https://github.com/w3c/csswg-drafts/issues/5287 1 WPT subtest now newly passes. WPT tests: https://wpt.fyi/results/css/mediaqueries/test_media_queries.html Differential Revision: https://phabricator.services.mozilla.com/D178710
