Run UpdateSubTree twice to ensure correctness
Also cleans up some weird code
# Conflicts: # osu.Game/Screens/Multi/Components/BeatmapTitle.cs
# Conflicts: # osu.Game.Rulesets.Mania/Difficulty/ManiaLegacyDifficultyCalculator.cs
# Conflicts: # osu.Game.Tests/Visual/TestCasePollingComponent.cs # osu.Game/Online/API/APIRequest.cs # osu.Game/osu.Game.csproj
We decided that mods shouldn't be interacting with other mods. This can be added once we have the ability to have per-mod settings, as a difficulty setting local to blinds.
# Conflicts: # osu.Game/osu.Game.csproj