Closes https://github.com/ppy/osu/issues/24274.
Bit of an ad-hoc resolution but maybe fine? This basically proposes to
bypass the problem described in the issue by just not showing tick hits
at all on the distribution graph.
This class was only used in two places, both on the results screen, but
was holding references to `OsuPlayfield` game-wide (due to unrelated
issues, but still).
Because I can't really think of future use cases for this, and running
the calculation twice at results screen isn't a huge overhead, let's
just do that for now to keep things simple.