Reverts calling next() after handling response (#2634)

* Revert "Makes sure routes don't overlap and yield a header set error"

* removes next() calls in PromiseRouter

* Reverts calling next() after response

* Adds fail calls when next() calls traverse tests

src/Controllers/AnalyticsController.js

@@ -1,8 +1,6 @@
 import AdaptableController from './AdaptableController';
 import { AnalyticsAdapter } from '../Adapters/Analytics/AnalyticsAdapter';
 
-const AppOpenedEventName = 'AppOpened';
-
 export class AnalyticsController extends AdaptableController {
   appOpened(req) {
     return Promise.resolve().then(() => {
@@ -15,12 +13,8 @@ export class AnalyticsController extends AdaptableController {
   }
 
   trackEvent(req) {
-    const eventName = req.params.eventName;
-    if (eventName === AppOpenedEventName) {
-      return this.appOpened(req);
-    }
     return Promise.resolve().then(() => {
-      return this.adapter.trackEvent(eventName, req.body, req);
+      return this.adapter.trackEvent(req.params.eventName, req.body, req);
     }).then((response) => {
       return { response: response || {} };
     }).catch((err) => {