Webpack: remove unneeded NormalModuleReplacementPlugin

It was adding 1 minute to build time, and the upstream issue is already fixed: https://github.com/remix-run/react-router/pull/5589

webpack/shared.js

@@ -68,13 +68,6 @@ module.exports = {
 
   plugins: [
     new webpack.EnvironmentPlugin(JSON.parse(JSON.stringify(env))),
-    new webpack.NormalModuleReplacementPlugin(
-      /^history\//, (resource) => {
-        // temporary fix for https://github.com/ReactTraining/react-router/issues/5576
-        // to reduce bundle size
-        resource.request = resource.request.replace(/^history/, 'history/es');
-      },
-    ),
     new MiniCssExtractPlugin({
       filename: 'packs/css/[name]-[contenthash:8].css',
       chunkFilename: 'packs/css/[name]-[contenthash:8].chunk.css',