Remove references to _.

sample.js

@@ -6,14 +6,13 @@ import isArray from './isArray.js';
  * Gets a random element from `collection`.
  *
  * @static
- * @memberOf _
  * @since 2.0.0
  * @category Collection
  * @param {Array|Object} collection The collection to sample.
  * @returns {*} Returns the random element.
  * @example
  *
- * _.sample([1, 2, 3, 4]);
+ * sample([1, 2, 3, 4]);
  * // => 2
  */
 function sample(collection) {