message: refactor(docs-infra): remove unused styles from `_content-layout.scss`
  This commit removes some styles from `_content-layout.scss` that are no
  longer used (i.e. either their CSS selectors do not match any element in
  the app or they are overridden by other rules).
  PR Close
diff: @@ -39,11 +39,3 @@ aio-menu {
  display: none;
  }
  }
  -
  -#guide-change-log h2::before {
  - content: "";
  - display: block;
  - height: 1px;
  - margin: 24px 0px;
  - background: $lightgray;
  -}
  