message: Removed redundant focusing while mousedown/touchstart
diff: @@ -347,14 +347,6 @@ export class MouseEventHandler implements IDestroyable {
  this._clickCount = 0;
  this._clickTimeoutId = setTimeout(this._resetClickTimeout.bind(this), Delay.ResetClick);
  }
  -
  - if (this._preventDefault) {
  - try {
  - window.focus();
  - } catch (er) {
  - // empty block
  - }
  - }
  }
  private _init(): void {
  