Remove unnecessary build dependency

package.json

@@ -23,7 +23,6 @@
     "extract-text-webpack-plugin": "^0.8.1",
     "node-libs-browser": "^0.5.2",
     "postcss-loader": "^0.4.4",
-    "postcss-modules-local-by-default": "0.0.7",
     "style-loader": "^0.12.3",
     "webpack": "^1.9.10"
   },

webpack.config.js

@@ -9,7 +9,7 @@ module.exports = {
         test: /\.css$/,
         loader: ExtractTextPlugin.extract(
           'style-loader',
-          'css-loader?localIdentName=[hash:base64:5]!postcss-loader'
+          'css-loader?module&localIdentName=[hash:base64:5]!postcss-loader'
         )
       },
       {
@@ -23,5 +23,5 @@ module.exports = {
   plugins: [
     new ExtractTextPlugin('react-web-sdk.css')
   ],
-  postcss: [ autoprefixer, localcss ]
+  postcss: [ autoprefixer ]
 };