refactor(server): remove node 4 specific code

Author: Awk34

Diff for: templates/app/server/config/express.js

@@ -16,9 +16,7 @@ import lusca from 'lusca';<% } %>
 import config from './environment';<% if(filters.auth) { %>
 import passport from 'passport';<% } %><% if(!filters.noModels) { %>
 import session from 'express-session';<% } %><% if(filters.mongoose) { %>
-<%_ if(semver.satisfies(nodeVersion, '>= 4')) { _%>
-import connectMongo from 'connect-mongo';<% } else { _%>
-import connectMongo from 'connect-mongo/es5';<% } %>
+import connectMongo from 'connect-mongo';
 import mongoose from 'mongoose';
 var MongoStore = connectMongo(session);<% } else if(filters.sequelize) { %>
 import sqldb from '../sqldb';