fix(app): karma requires babel always

Author: kingcody

app/templates/mocha.conf.js

@@ -1,7 +1,7 @@
-'use strict';<% if(filters.babel) { %>
+'use strict';
 
 // Register the Babel require hook
-require('babel-core/register');<% } %>
+require('babel-core/register');
 
 var chai = require('chai');