Remove superfluous IIFEs

spec/javascripts/bootstrap_linked_tabs_spec.js

 import LinkedTabs from '~/lib/utils/bootstrap_linked_tabs';
 
-(() => {
-  describe('Linked Tabs', () => {
+describe('Linked Tabs', () => {
   preloadFixtures('static/linked_tabs.html.raw');
 
   beforeEach(() => {
@@ -65,5 +64,4 @@ import LinkedTabs from '~/lib/utils/bootstrap_linked_tabs';
       }
     });
   });
-  });
-})();
+});

spec/javascripts/labels_issue_sidebar_spec.js

@@ -12,11 +12,10 @@ import '~/api';
 import '~/create_label';
 import '~/users_select';
 
-(() => {
-  let saveLabelCount = 0;
-  let mock;
+let saveLabelCount = 0;
+let mock;
 
-  describe('Issue dropdown sidebar', () => {
+describe('Issue dropdown sidebar', () => {
   preloadFixtures('static/issue_sidebar_label.html.raw');
 
   beforeEach(() => {
@@ -115,5 +114,4 @@ import '~/users_select';
       }, 0);
     }, 0);
   });
-  });
-})();
+});

spec/javascripts/signin_tabs_memoizer_spec.js

 import AccessorUtilities from '~/lib/utils/accessor';
 import SigninTabsMemoizer from '~/pages/sessions/new/signin_tabs_memoizer';
 
-(() => {
-  describe('SigninTabsMemoizer', () => {
+describe('SigninTabsMemoizer', () => {
   const fixtureTemplate = 'static/signin_tabs.html.raw';
   const tabSelector = 'ul.new-session-tabs';
   const currentTabKey = 'current_signin_tab';
@@ -167,5 +166,4 @@ import SigninTabsMemoizer from '~/pages/sessions/new/signin_tabs_memoizer';
       });
     });
   });
-  });
-})();
+});