message: Remove unused triggerEvent
diff: import { module, test } from 'qunit';
  import { setupRenderingTest } from 'ember-qunit';
  -import { render, triggerEvent, fillIn } from '@ember/test-helpers';
  +import { render, fillIn } from '@ember/test-helpers';
  import EmberObject from '@ember/object';
  import hbs from 'htmlbars-inline-precompile';
  