Remove remaining deprecated GlNew references

ee/spec/frontend/audit_events/components/sorting_field_spec.js

@@ -8,10 +8,6 @@ describe('SortingField component', () => {
   const initComponent = (props = {}) => {
     wrapper = shallowMount(SortingField, {
       propsData: { ...props },
-      stubs: {
-        GlNewDropdown: true,
-        GlDropdownItem: true,
-      },
     });
   };
 

ee/spec/frontend/sidebar/components/iteration_select_spec.js

@@ -124,7 +124,7 @@ describe('IterationSelect', () => {
 
     describe('when user is editing', () => {
       describe('when rendering the dropdown', () => {
-        it('shows GlNewDropdown', () => {
+        it('shows GlDropdown', () => {
           createComponent({ props: { canEdit: true }, data: { editing: true } });
 
           expect(wrapper.find(GlDropdown).isVisible()).toBe(true);