webpack: replace deprecated LoaderOptionsPlugin with OptimizeCSSAssetsPlugin

webpack/webpack.test.js

@@ -241,18 +241,6 @@ module.exports = function (options) {
           'HMR': false,
         }
       }),
-
-      /**
-       * Plugin LoaderOptionsPlugin (experimental)
-       *
-       * See: https://gist.github.com/sokra/27b24881210b56bbaff7
-       */
-      new LoaderOptionsPlugin({
-        debug: false,
-        options: {
-
-        }
-      }),
       new ForkTsCheckerWebpackPlugin()
     ],