remove mini css extractor

Author: frankpagan

package.json

@@ -28,7 +28,6 @@
   "dependencies": {
     "extract-comments": "^1.1.0",
     "glob": "^7.1.6",
-    "mini-css-extract-plugin": "^1.5.0",
     "parse-html-comments": "^1.3.1",
     "ws": "^7.3.1"
   }