Remove "Switch To" tooltip from top nav

https://gitlab.com/gitlab-org/gitlab/-/issues/331466

app/assets/javascripts/nav/components/top_nav_app.vue

 <script>
-import { GlNav, GlNavItemDropdown, GlDropdownForm, GlTooltip } from '@gitlab/ui';
-import { s__ } from '~/locale';
+import { GlNav, GlNavItemDropdown, GlDropdownForm } from '@gitlab/ui';
 import TopNavDropdownMenu from './top_nav_dropdown_menu.vue';
 
-const TOOLTIP = s__('TopNav|Switch to...');
-
 export default {
   components: {
     GlNav,
     GlNavItemDropdown,
     GlDropdownForm,
-    GlTooltip,
     TopNavDropdownMenu,
   },
   props: {
@@ -19,15 +15,6 @@ export default {
       required: true,
     },
   },
-  methods: {
-    findTooltipTarget() {
-      // ### Why use a target function instead of `v-gl-tooltip`?
-      // To get the tooltip to align correctly, we need it to target the actual
-      // toggle button which we don't directly render.
-      return this.$el.querySelector('.js-top-nav-dropdown-toggle');
-    },
-  },
-  TOOLTIP,
 };
 </script>
 
@@ -48,12 +35,5 @@ export default {
         />
       </gl-dropdown-form>
     </gl-nav-item-dropdown>
-    <gl-tooltip
-      boundary="window"
-      :boundary-padding="0"
-      :target="findTooltipTarget"
-      placement="right"
-      :title="$options.TOOLTIP"
-    />
   </gl-nav>
 </template>

locale/gitlab.pot

@@ -34330,9 +34330,6 @@ msgstr ""
 msgid "Too many projects enabled. You will need to manage them via the console or the API."
 msgstr ""
 
-msgid "TopNav|Switch to..."
-msgstr ""
-
 msgid "Topics (optional)"
 msgstr ""
 

spec/frontend/nav/components/top_nav_app_spec.js

-import { GlNavItemDropdown, GlTooltip } from '@gitlab/ui';
-import { shallowMount, mount } from '@vue/test-utils';
+import { GlNavItemDropdown } from '@gitlab/ui';
+import { shallowMount } from '@vue/test-utils';
 import TopNavApp from '~/nav/components/top_nav_app.vue';
 import TopNavDropdownMenu from '~/nav/components/top_nav_dropdown_menu.vue';
 import { TEST_NAV_DATA } from '../mock_data';
@@ -7,8 +7,8 @@ import { TEST_NAV_DATA } from '../mock_data';
 describe('~/nav/components/top_nav_app.vue', () => {
   let wrapper;
 
-  const createComponent = (mountFn = shallowMount) => {
-    wrapper = mountFn(TopNavApp, {
+  const createComponent = () => {
+    wrapper = shallowMount(TopNavApp, {
       propsData: {
         navData: TEST_NAV_DATA,
       },
@@ -17,7 +17,6 @@ describe('~/nav/components/top_nav_app.vue', () => {
 
   const findNavItemDropdown = () => wrapper.findComponent(GlNavItemDropdown);
   const findMenu = () => wrapper.findComponent(TopNavDropdownMenu);
-  const findTooltip = () => wrapper.findComponent(GlTooltip);
 
   afterEach(() => {
     wrapper.destroy();
@@ -44,25 +43,5 @@ describe('~/nav/components/top_nav_app.vue', () => {
         views: TEST_NAV_DATA.views,
       });
     });
-
-    it('renders tooltip', () => {
-      expect(findTooltip().attributes()).toMatchObject({
-        'boundary-padding': '0',
-        placement: 'right',
-        title: TopNavApp.TOOLTIP,
-      });
-    });
-  });
-
-  describe('when full mounted', () => {
-    beforeEach(() => {
-      createComponent(mount);
-    });
-
-    it('has dropdown toggle as tooltip target', () => {
-      const targetFn = findTooltip().props('target');
-
-      expect(targetFn()).toBe(wrapper.find('.js-top-nav-dropdown-toggle').element);
-    });
   });
 });