Remove arguments to getPlugins.

js/webpack/app.js

@@ -167,7 +167,7 @@ module.exports = {
 
   plugins: (function () {
     let plugins = []
-      .concat(Shared.getPlugins(isProd, true))
+      .concat(Shared.getPlugins())
       .concat(
         new WebpackErrorNotificationPlugin(),
         new ExtractTextPlugin({

js/webpack/inject.js

@@ -77,5 +77,5 @@ module.exports = {
       }
     ]
   },
-  plugins: Shared.getPlugins(isProd, false)
+  plugins: Shared.getPlugins()
 };