function _removeHint(stepId) {
    var hint = this._targetElement.querySelector('.introjs-hint[data-step="' + stepId + '"]');

    if (hint) {
      hint.parentNode.removeChild(hint);
    }
  }
Remove one single hint element from the page
Useful when you want to destroy the element and add them again (e.g. a modal or popup)
Use removeHints if you want to remove all elements.

@api private
@method _removeHint