test: drop org cleanup from team-delete e2e test

The e2e database is isolated and uses random org names, so per-test
cleanup is unnecessary and only leaks the org on mid-test failure.

Assisted-by: claude-code:opus-4.8

tests/e2e/org.test.ts

@@ -49,5 +49,4 @@ test('delete team via confirm modal', async ({page, request}) => {
   await page.getByRole('button', {name: 'Yes'}).click();
   await expect(page).toHaveURL(new RegExp(`/org/${orgName}/teams$`));
   await expect(page.getByText('The team has been deleted.')).toBeVisible();
-  await apiDeleteOrg(request, orgName);
 });