remove fixed number of iterations (#406)

benchmark.js

@@ -1,10 +1,8 @@
-/* globals suite, set, bench */
+/* globals suite, bench */
 'use strict';
 const chalk = require('.');
 
 suite('chalk', () => {
-	set('iterations', 1000000);
-
 	const chalkRed = chalk.red;
 	const chalkBgRed = chalk.bgRed;
 	const chalkBlueBgRed = chalk.blue.bgRed;
@@ -48,8 +46,6 @@ suite('chalk', () => {
 		chalkBgRed(blueStyledString);
 	});
 
-	set('iterations', 10000);
-
 	bench('cached: 1 style template literal', () => {
 		// eslint-disable-next-line no-unused-expressions
 		chalkRed`the fox jumps over the lazy dog`;