t5541: test more combinations of --progress

Previously, we tested only that "push --quiet --no-progress" was silent. However, there are many other combinations that were not tested: 1. no options at all (but stderr as a tty) 2. --no-progress by itself 3. --quiet by itself 4. --progress (when stderr not a tty) These are tested elsewhere for general "push", but it is important to test them separately for http. It follows a very different code path than git://, and options must be relayed across a remote helper to a separate send-pack process (and in fact cases (1), (2), and (4) have all been broken just for http at some point in the past). We can drop the "--quiet --no-progress" test, as it is not really interesting (it is already handled by testing them separately in (2) and (3) above). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>