Remove references to _.

stubString.js

@@ -2,13 +2,12 @@
  * This method returns an empty string.
  *
  * @static
- * @memberOf _
  * @since 4.13.0
  * @category Util
  * @returns {string} Returns the empty string.
  * @example
  *
- * _.times(2, _.stubString);
+ * times(2, stubString);
  * // => ['', '']
  */
 function stubString() {