Remove flash messages

ee/app/assets/javascripts/trials/extend_reactivate_trial/components/extend_reactivate_trial_button.vue

 <script>
 import { GlButton, GlModal, GlModalDirective } from '@gitlab/ui';
 import { extendTrial, reactivateTrial } from 'ee/api/subscriptions_api';
-import createFlash, { FLASH_TYPES } from '~/flash';
+import createFlash from '~/flash';
+import { refreshCurrentPage } from '~/lib/utils/url_utility';
 import { sprintf, __ } from '~/locale';
 import { i18n, TRIAL_ACTION_EXTEND, TRIAL_ACTIONS } from '../constants';
 
@@ -29,7 +30,6 @@ export default {
   },
   data() {
     return {
-      isButtonVisible: true,
       isLoading: false,
     };
   },
@@ -65,8 +65,7 @@ export default {
 
       await action(this.namespaceId)
         .then(() => {
-          createFlash({ message: this.i18nContext.flashText, type: FLASH_TYPES.SUCCESS });
-          this.isButtonVisible = false;
+          refreshCurrentPage();
         })
         .catch((error) => {
           createFlash({

ee/app/assets/javascripts/trials/extend_reactivate_trial/constants.js

@@ -18,7 +18,6 @@ export const i18n = Object.freeze({
     modalText: s__(
       'Billings|By reactivating your trial, you will receive an additional 30 days of %{planName}. Your trial can be only reactivated once.',
     ),
-    flashText: s__('Billings|Your trial has been reactivated for an additional 30 days.'),
     trialActionError: s__('Billings|An error occurred while reactivating your trial.'),
   },
 });

ee/spec/frontend/trials/extend_reactivate_trial/components/extend_reactivate_trial_button_spec.js

@@ -35,10 +35,6 @@ describe('ExtendReactivateTrialButton', () => {
       });
     });
 
-    it('renders the button visible', () => {
-      expect(findButton().isVisible()).toBe(true);
-    });
-
     it('does not have loading icon', () => {
       expect(findButton().props('loading')).toBe(false);
     });