Clean folders properly before build

package.json

@@ -10,9 +10,8 @@
     "scripts": {
         "dev": "npx webpack-dev-server --config ./webpack/dev.babel.js",
         "dev:local": "npx webpack-dev-server --config ./webpack/local.babel.js",
-        "build:clean": "rimraf build build-devel",
-        "build:production": "npx webpack --config ./webpack/production.babel.js --progress --bail",
-        "build:dev": "cross-env BUILD=development npx webpack --config ./webpack/production.babel.js --output-path build-devel --progress --bail",
+        "build:prod": "rimraf build && npx webpack --config ./webpack/production.babel.js --progress --bail",
+        "build:dev": "rimraf build-devel && cross-env BUILD=development npx webpack --config ./webpack/production.babel.js --output-path build-devel --progress --bail",
         "build": "run-s build:*",
         "flow": "flow check src",
         "lint": "run-s lint:*",