message: refactor(common): unused return value from attemptFocus
  The function attemptFocus had a return value that nowhere is used. But it still saves in the bundle.
  PR Close
diff: @@ -127,7 +127,11 @@ export class BrowserViewportScroller implements ViewportScroller {
  this.scrollToElement(elSelected);
  // After scrolling to the element, the spec dictates that we follow the focus steps for the
  // target. Rather than following the robust steps, simply attempt focus.
  - this.attemptFocus(elSelected);
  + //
  + // @see https://html.spec.whatwg.org/#get-the-focusable-area
  + // @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus
  + // @see https://html.spec.whatwg.org/#focusable-area
  + elSelected.focus();
  }
  }
  @@ -157,21 +161,6 @@ export class BrowserViewportScroller implements ViewportScroller {
  this.window.scrollTo(left - offset[0], top - offset[1]);
  }
  - /**
  - * Calls `focus` on the `focusTarget` and returns `true` if the element was focused successfully.
  - *
  - * If `false`, further steps may be necessary to determine a valid substitute to be focused
  - * instead.
  - *
  - * @see https://html.spec.whatwg.org/#get-the-focusable-area
  - * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLOrForeignElement/focus
  - * @see https://html.spec.whatwg.org/#focusable-area
  - */
  - private attemptFocus(focusTarget: HTMLElement): boolean {
  - focusTarget.focus();
  - return this.document.activeElement === focusTarget;
  - }
  -
  /**
  * We only support scroll restoration when we can get a hold of window.
  * This means that we do not support this behavior when running in a web worker.
  