Remove unused package

Author: Muhammad Haris

package-lock.json

@@ -5,7 +5,6 @@
     "main": "assets/js/public.js",
     "dependencies": {
         "@wordpress/html-entities": "^2.0.2",
-        "awesome-debounce-promise": "^1.0.0",
         "babel-core": "^6.26.3",
         "babel-loader": "^7.1.4",
         "babel-preset-env": "^1.7.0",