remove obsolete export

Author: wojtek-krysiak

index.js

@@ -20,7 +20,6 @@ if (process.env.ADMIN_BRO_DEV_ENV) {
   AdminBro.Router = require('./src/backend/router').default
   AdminBro.Filter = require('./src/backend/utils/filter').default
   AdminBro.ValidationError = require('./src/backend/utils/validation-error').default
-  AdminBro.fileUploader = require('./src/modules/file-uploader/index').default
   AdminBro.ACTIONS = require('./src/backend/actions/index')
   constants = require('./src/constants')
 } else {
@@ -32,7 +31,6 @@ if (process.env.ADMIN_BRO_DEV_ENV) {
   AdminBro.Router = require('./lib/backend/router').default
   AdminBro.Filter = require('./lib/backend/utils/filter').default
   AdminBro.ValidationError = require('./lib/backend/utils/validation-error').default
-  AdminBro.fileUploader = require('./lib/modules/file-uploader/index').default
   AdminBro.ACTIONS = require('./lib/backend/actions/index')
   constants = require('./lib/constants')
 }