fix(utils): remove incorrect async from emptyFolder

Author: mhassan1

lib/utils.js

@@ -456,7 +456,7 @@ module.exports.isNotSet = function (obj) {
   return false;
 };
 
-module.exports.emptyFolder = async (directoryPath) => {
+module.exports.emptyFolder = (directoryPath) => {
   require('child_process').execSync(`rm -rf ${directoryPath}/*`);
 };