refactor: 💡 replace store.findAll with store.query (#2002)

✅ Closes: https://hashicorp.atlassian.net/browse/ICU-11825

addons/api/addon/adapters/application.js

@@ -106,16 +106,6 @@ export default class ApplicationAdapter extends RESTAdapter.extend(
     return dasherize(pluralize(type));
   }
 
-  /**
-   * Intercepts "empty" responses and adds an empty `items` array.
-   * @override
-   * @method findAll
-   * @return {Promise} promise
-   */
-  findAll() {
-    return super.findAll(...arguments).then(prenormalizeArrayResponse);
-  }
-
   /**
    * Intercepts "empty" responses and adds an empty `items` array.
    * This query method now supports pagination by checking the responseType and