Fixes #1461.
# Conflicts: # osu.Game.Rulesets.Mania/Beatmaps/ManiaBeatmapConverter.cs # osu.Game.Rulesets.Mania/UI/ManiaRulesetContainer.cs # osu.Game/Rulesets/UI/RulesetContainer.cs
Used to get correct bindings for a mode (ActionMappingInputManager).
Also removing a lot of mania code relating to gravity mod for now.
# Conflicts: # osu-framework