DEV: Remove the <details> polyfill #10260
Merged
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Per the linked site (http://mths.be/details) and https://caniuse.com/#feat=details the <details> element is supported since Chrome 12/Safari 6/Firefox 49/Edge 79. IE 11 doesn't handle it but we dropped the support for that browser.
Removing this fixes the lint issues uncovered in #10259.