message: Remove unnecessary computed in favor of
diff: import { tagName } from '@ember-decorators/component';
  import { action, computed } from '@ember-decorators/object';
  -import { alias } from '@ember-decorators/object/computed';
  +import { alias, not } from '@ember-decorators/object/computed';
  import { service } from '@ember-decorators/service';
  import Component from '@ember/component';
  import { assert } from '@ember/debug';
  @@ -132,6 +132,7 @@ export default class DraftRegistrationManagerComponent extends Component.extend(
  @service toast!: Toast;
  @alias('onInput.isRunning') autoSaving!: boolean;
  @alias('initializePageManagers.isRunning') initializing!: boolean;
  + @not('registrationResponsesIsValid') hasInvalidResponses!: boolean;
  @computed('currentPage', 'pageManagers.[]')
  get nextPageParam() {
  @@ -173,11 +174,6 @@ export default class DraftRegistrationManagerComponent extends Component.extend(
  return this.onInput.lastComplete ? this.onInput.lastComplete.isError : false;
  }
  - @computed('pageManagers.{[],@each.pageIsInvalid}')
  - get hasInvalidResponses() {
  - return this.pageManagers.find(pageManager => pageManager.pageIsInvalid === true);
  - }
  -
  @action
  onPageChange(currentPage: number, inReview: boolean) {
  if (inReview) {
  