Ports c256aca1 to v4

Refs #15947, #17542

[ci skip]

scss/_reboot.scss

@@ -201,7 +201,6 @@ img {
 // Fixes "clickability" issue (and more generally, the firing of events such as focus as well)
 // for traditionally non-focusable elements with role="button"
 // see https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile
-// Upstream patch for normalize.css submitted: https://github.com/necolas/normalize.css/pull/379 - remove this fix once that is merged
 
 [role="button"] {
   cursor: pointer;