Test was added in 5495c2090a to exercise a
previous version of the hotfix-workaround of not allowing seeking back.
Now that the hotfix-workaround also encompasses seeking *forward*, which
breaks another 100 tests, thus requiring the hotfix-workaround to be
turned off for tests, this situation is just completely out of
control. So I'm just removing the test because ugh.
Probably closes https://github.com/ppy/osu/issues/34645.
Obviously this is only good if the score has managed to process online
and slot into a leaderboard before the user requested a retry. I can't
make miracles happen.
Notably this is not applied to quick retry, because it would make quick
retry slower, and the presumption is that if the user is quick-retrying
their last score is likely useless for global leaderboards anyway. (The
one exception to that last part is possibly quick-retrying from results
screen, which is a flow that we have, but maybe fine to ignore it...?)