chore: bench clean up

Author: Neerajpathak07

lib/node_modules/@stdlib/stats/base/dnanmean/benchmark/benchmark.js

@@ -35,6 +35,7 @@ var dnanmean = require( './../lib/dnanmean.js' );
 /**
 * Returns a random value or `NaN`.
 *
+* @private
 * @returns {number} Random number or `NaN`
 */
 function rand() {

lib/node_modules/@stdlib/stats/base/dnanmean/benchmark/benchmark.native.js

@@ -44,6 +44,7 @@ var opts = {
 /**
 * Returns a random value or `NaN`.
 *
+* @private
 * @returns {number} Random number or `NaN`
 */
 function rand() {

lib/node_modules/@stdlib/stats/base/dnanmean/benchmark/benchmark.ndarray.js

@@ -35,6 +35,7 @@ var dnanmean = require( './../lib/ndarray.js' );
 /**
 * Returns a random value or `NaN`.
 *
+* @private
 * @returns {number} Random number or `NaN`
 */
 function rand() {

lib/node_modules/@stdlib/stats/base/dnanmean/benchmark/benchmark.ndarray.native.js

@@ -44,6 +44,7 @@ var opts = {
 /**
 * Returns a random value or `NaN`.
 *
+* @private
 * @returns {number} Random number or `NaN`
 */
 function rand() {