Remove obsolete source code

react/features/app/middleware.js

 } from '../base/connection';
 import { MiddlewareRegistry } from '../base/redux';
 
+import { _getRouteToRender } from './functions';
+
 MiddlewareRegistry.register(store => next => action => {
     switch (action.type) {
     case CONNECTION_ESTABLISHED:
  */
 function _navigate({ getState }) {
     const state = getState();
-    const { app, getRouteToRender } = state['features/app'];
-    const routeToRender = getRouteToRender && getRouteToRender(state);
+    const { app } = state['features/app'];
+    const routeToRender = _getRouteToRender(state);
 
     return app._navigate(routeToRender);
 }

react/features/app/reducer.js

-import { SET_ROOM } from '../base/conference';
-import { SET_LOCATION_URL } from '../base/connection';
+// @flow
 
-import { ReducerRegistry, set } from '../base/redux';
+import { ReducerRegistry } from '../base/redux';
 
 import { APP_WILL_MOUNT, APP_WILL_UNMOUNT } from './actionTypes';
-import { _getRouteToRender } from './functions';
 
 ReducerRegistry.register('features/app', (state = {}, action) => {
     switch (action.type) {
             };
         }
         break;
-
-    case SET_LOCATION_URL:
-        return set(state, 'getRouteToRender', undefined);
-
-    case SET_ROOM:
-        return set(state, 'getRouteToRender', _getRouteToRender);
     }
 
     return state;