Remove incorrect localVue usage

localVue is required only with use method

ee/spec/frontend/alerts_service_settings/components/alerts_service_form_spec.js

 import axios from 'axios';
 import MockAdapter from 'axios-mock-adapter';
-import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { shallowMount } from '@vue/test-utils';
 import { GlModal } from '@gitlab/ui';
 import AlertsServiceForm from 'ee/alerts_service_settings/components/alerts_service_form.vue';
 import ToggleButton from '~/vue_shared/components/toggle_button.vue';
@@ -8,8 +8,6 @@ import createFlash from '~/flash';
 
 jest.mock('~/flash');
 
-const localVue = createLocalVue();
-
 const defaultProps = {
   initialAuthorizationKey: 'abcedfg123',
   formPath: 'http://invalid',
@@ -24,7 +22,6 @@ describe('AlertsServiceForm', () => {
 
   const createComponent = (props = defaultProps, { methods } = {}) => {
     wrapper = shallowMount(AlertsServiceForm, {
-      localVue,
       propsData: {
         ...defaultProps,
         ...props,

ee/spec/frontend/clusters/components/environments_spec.js

-import { createLocalVue, mount } from '@vue/test-utils';
+import { mount } from '@vue/test-utils';
 import Environments from 'ee/clusters/components/environments.vue';
 import { GlTable, GlEmptyState, GlLoadingIcon } from '@gitlab/ui';
 import Icon from '~/vue_shared/components/icon.vue';
 import environments from './mock_data';
 
-const localVue = createLocalVue();
-
 describe('Environments', () => {
   let wrapper;
   let propsData;
@@ -21,7 +19,6 @@ describe('Environments', () => {
 
     wrapper = mount(Environments, {
       propsData,
-      localVue,
     });
   });
 
@@ -44,7 +41,6 @@ describe('Environments', () => {
     beforeAll(() => {
       wrapper = mount(Environments, {
         propsData: { ...propsData, environments },
-        localVue,
         stubs: { deploymentInstance: '<div class="js-deployment-instance"></div>' },
         sync: false,
       });

ee/spec/frontend/notes/components/note_actions_spec.js

-import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { shallowMount } from '@vue/test-utils';
 import { TEST_HOST } from 'spec/test_constants';
 import createStore from '~/notes/stores';
 import noteActions from '~/notes/components/note_actions.vue';
 import { userDataMock } from '../../../../spec/frontend/notes/mock_data';
 
-const localVue = createLocalVue();
-
 describe('noteActions', () => {
   let wrapper;
   let store;
@@ -15,7 +13,6 @@ describe('noteActions', () => {
     shallowMount(noteActions, {
       store,
       propsData,
-      localVue,
       sync: false,
       attachToDocument: true,
     });

ee/spec/frontend/operations/components/dashboard/project_header_spec.js

-import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { shallowMount } from '@vue/test-utils';
 import ProjectHeader from 'ee/operations/components/dashboard/project_header.vue';
 import { trimText } from 'helpers/text_helper';
 import ProjectAvatar from '~/vue_shared/components/project_avatar/default.vue';
 import { mockOneProject } from '../../mock_data';
 
-const localVue = createLocalVue();
-
 describe('project header component', () => {
   let wrapper;
 
@@ -14,7 +12,6 @@ describe('project header component', () => {
       propsData: {
         project: mockOneProject,
       },
-      localVue,
       sync: false,
       attachToDocument: true,
     });

ee/spec/frontend/subscriptions/new/components/checkout/progress_bar_spec.js

-import { shallowMount, createLocalVue } from '@vue/test-utils';
+import { shallowMount } from '@vue/test-utils';
 import component from 'ee/subscriptions/new/components/checkout/progress_bar.vue';
 
 describe('Progress Bar', () => {
-  const localVue = createLocalVue();
   let wrapper;
 
   const factory = propsData => {
     wrapper = shallowMount(component, {
       propsData,
-      localVue,
       sync: false,
     });
   };

ee/spec/frontend/subscriptions/new/components/checkout/subscription_details_spec.js

@@ -94,7 +94,7 @@ describe('Subscription Details', () => {
         store.commit(types.UPDATE_ORGANIZATION_NAME, 'My Organization');
         store.commit(types.UPDATE_NUMBER_OF_USERS, 2);
 
-        return localVue.nextTick().then(() => {
+        return wrapper.vm.$nextTick().then(() => {
           expect(isStepValid()).toBe(true);
         });
       });