Remove modules.localIdentName (#11398)

config/webpack/rules/css.js

@@ -9,9 +9,6 @@ module.exports = {
       options: {
         sourceMap: true,
         importLoaders: 2,
-        modules: {
-          localIdentName: '[name]__[local]___[hash:base64:5]',
-        },
       },
     },
     {