Remove references to _.

constant.js

@@ -2,14 +2,13 @@
  * Creates a function that returns `value`.
  *
  * @static
- * @memberOf _
  * @since 2.4.0
  * @category Util
  * @param {*} value The value to return from the new function.
  * @returns {Function} Returns the new constant function.
  * @example
  *
- * var objects = _.times(2, _.constant({ 'a': 1 }));
+ * var objects = times(2, constant({ 'a': 1 }));
  *
  * console.log(objects);
  * // => [{ 'a': 1 }, { 'a': 1 }]