ref(build): remove aui javascript from imports

app.js

 import 'jQuery-Impromptu';
 import 'autosize';
 
-import 'aui';
-import 'aui-experimental';
 import 'aui-css';
 import 'aui-experimental-css';
 

package.json

     "lint"
   ],
   "browser": {
-    "aui": "@atlassian/aui/lib/js/aui.js",
     "aui-css": "./node_modules/@atlassian/aui/dist/aui/css/aui.min.css",
-    "aui-experimental": "@atlassian/aui/lib/js/aui-experimental.js",
     "aui-experimental-css": "./node_modules/@atlassian/aui/dist/aui/css/aui-experimental.min.css",
     "autosize": "./node_modules/autosize/build/jquery.autosize.js",
     "jQuery-Impromptu": "jQuery-Impromptu/src/jquery-impromptu.js"