Replace cloneDeep method of Lodash from JSON

Author: fayyazarshad

packages/optimizely-sdk/lib/utils/fns/index.js

@@ -29,7 +29,7 @@ module.exports = {
       var to = Object(target);
       for (var index = 1; index < arguments.length; index++) {
         var nextSource = arguments[index];
-        if (nextSource !== null && nextSource !== undefined) { 
+        if (nextSource !== null && nextSource !== undefined) {
           for (var nextKey in nextSource) {
             // Avoid bugs when hasOwnProperty is shadowed
             if (Object.prototype.hasOwnProperty.call(nextSource, nextKey)) {
@@ -41,7 +41,9 @@ module.exports = {
       return to;
     }
   },
-  cloneDeep: require('lodash/cloneDeep'),
+  cloneDeep: function(object) {
+    return JSON.parse(JSON.stringify(object));
+  },
   currentTimestamp: function() {
     return Math.round(new Date().getTime());
   },