I think @pachlava and I had a written discussion about this somewhere, but I couldn't find it 🤔
There's nothing wrong in calling super in setup or teardown methods, but it's unnecessary because XCTestCase doesn't implement any functionality in there, making calling super redundant.
Note that I couldn't find any explicit proof in the docs to back my assertion. But, I'll point you towards the life-cycle documentation page to see that there is no mention of calling the superclass.