[menu.spec.js] Fix bad menu navigations

Clicking top level menu items is no longer supported with the Carbon
styles, so fixing the specs to better reflect the current functionality,
or commenting out places where it isn't valid.

Most likely broken because of these changes:

ManageIQ#6963

cypress/integration/ui/menu.spec.js

@@ -14,24 +14,20 @@ describe('Menu', () => {
         expect(menu[2].items[1].items[3].title).to.equal('Virtual Machines');
       });
 
-    cy.menu('Overview')
+    cy.menu('Overview', 'Dashboard')
       .get('widget-wrapper');
 
-    cy.menu('Services')
+    cy.menu('Overview', 'Reports')
+      .expect_explorer_title('All Saved Reports');
+
+    cy.menu('Services', 'My Services')
       .expect_explorer_title('Active Services');
 
-    cy.menu('Compute')
+    cy.menu('Compute', 'Clouds', 'Providers')
       .expect_show_list_title('Cloud Providers');
 
-    cy.menu('Overview', 'Reports')
-      .expect_explorer_title('All Saved Reports');
-
     cy.menu('Compute', 'Infrastructure', 'Virtual Machines')
       .expect_explorer_title('All VMs & Templates');
-
-    // test it remembers the last Overview > * screen used
-    cy.menu('Overview')
-      .expect_explorer_title('All Saved Reports');
   });
 
   it.skip("all menu items lead to non-error screens", () => {