[ResponseOps][Cases] Fix edit tags flaky test (#186295)

Fixes [#175655](#175655)

## Summary

The other tests already tested the edit button so I changed the scope to
look only for the `no tags` message.

x-pack/plugins/cases/public/components/case_view/components/edit_tags.test.tsx

@@ -25,8 +25,7 @@ const defaultProps: EditTagsProps = {
   tags: [],
 };
 
-// FLAKY: https://github.com/elastic/kibana/issues/175655
-describe.skip('EditTags ', () => {
+describe('EditTags ', () => {
   let appMockRender: AppMockRenderer;
 
   const sampleTags = ['coke', 'pepsi'];
@@ -43,18 +42,11 @@ describe.skip('EditTags ', () => {
     appMockRender = createAppMockRenderer();
   });
 
-  it('renders no tags, and then edit', async () => {
+  it('renders no tags message', async () => {
     appMockRender.render(<EditTags {...defaultProps} />);
 
     expect(await screen.findByTestId('no-tags')).toBeInTheDocument();
-
-    userEvent.click(await screen.findByTestId('tag-list-edit-button'));
-
-    await waitFor(() => {
-      expect(screen.queryByTestId('no-tags')).not.toBeInTheDocument();
-    });
-
-    expect(await screen.findByTestId('edit-tags')).toBeInTheDocument();
+    expect(await screen.findByTestId('tag-list-edit-button')).toBeInTheDocument();
   });
 
   it('edit tag from options on submit', async () => {