Feature/remove clean plugin dependency (#239)

* Delete useless lines

* Remove clean-webpack-plugin useless dependency

Author: pirropirro

package-lock.json

@@ -29,7 +29,6 @@
     "babel-preset-env": "^1.7.0",
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-react": "^6.24.1",
-    "clean-webpack-plugin": "^2.0.1",
     "cross-env": "^6.0.3",
     "eslint": "^5.16.0",
     "eslint-config-airbnb-base": "^14.0.0",

package.json

@@ -1,6 +1,5 @@
 const path = require('path');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
-// const CleanWebpackPlugin = require('clean-webpack-plugin');
 
 const src = path.join(__dirname, 'demo');
 const dist = path.join(__dirname, '.tmp');
@@ -16,7 +15,6 @@ module.exports = {
     allowedHosts: ['local.arduino.cc']
   },
   plugins: [
-    // new CleanWebpackPlugin([dist]),
     new HtmlWebpackPlugin({
       template: path.join(src, 'index.html')
     })