Remove sidebar bundle spec

spec/javascripts/sidebar/sidebar_bundle_spec.js

-import Vue from 'vue';
-import SidebarBundleDomContentLoaded from '~/sidebar/sidebar_bundle';
-import SidebarTimeTracking from '~/sidebar/components/time_tracking/sidebar_time_tracking';
-import SidebarMediator from '~/sidebar/sidebar_mediator';
-import SidebarService from '~/sidebar/services/sidebar_service';
-import SidebarStore from '~/sidebar/stores/sidebar_store';
-import Mock from './mock_data';
-
-describe('sidebar bundle', () => {
-  gl.sidebarOptions = Mock.mediator;
-
-  beforeEach(() => {
-    spyOn(SidebarTimeTracking.methods, 'listenForSlashCommands').and.callFake(() => { });
-    preloadFixtures('issues/open-issue.html.raw');
-    Vue.http.interceptors.push(Mock.sidebarMockInterceptor);
-    loadFixtures('issues/open-issue.html.raw');
-    spyOn(Vue.prototype, '$mount');
-    SidebarBundleDomContentLoaded();
-    this.mediator = new SidebarMediator();
-  });
-
-  afterEach(() => {
-    SidebarService.singleton = null;
-    SidebarStore.singleton = null;
-    SidebarMediator.singleton = null;
-  });
-
-  it('the mediator should be already defined with some data', () => {
-    SidebarBundleDomContentLoaded();
-
-    expect(this.mediator.store).toBeDefined();
-    expect(this.mediator.service).toBeDefined();
-    expect(this.mediator.store.currentUser).toEqual(Mock.mediator.currentUser);
-    expect(this.mediator.store.rootPath).toEqual(Mock.mediator.rootPath);
-    expect(this.mediator.store.endPoint).toEqual(Mock.mediator.endPoint);
-    expect(this.mediator.store.editable).toEqual(Mock.mediator.editable);
-  });
-
-  it('the sidebar time tracking and assignees components to have been mounted', () => {
-    expect(Vue.prototype.$mount).toHaveBeenCalledTimes(2);
-  });
-});