Remove unused load checks

osu.Game.Tests/Visual/Gameplay/TestSceneStoryboardSamplePlayback.cs

@@ -57,7 +57,7 @@ namespace osu.Game.Tests.Visual.Gameplay
 
         private void checkForFirstSamplePlayback()
         {
-            AddUntilStep("storyboard loaded", () => Player.Beatmap.Value.StoryboardLoaded);
+            AddAssert("storyboard loaded", () => Player.Beatmap.Value.Storyboard != null);
             AddUntilStep("any storyboard samples playing", () => allStoryboardSamples.Any(sound => sound.IsPlaying));
         }
 

osu.Game/Beatmaps/IWorkingBeatmap.cs

@@ -29,26 +29,6 @@ namespace osu.Game.Beatmaps
         ///</summary>
         public bool BeatmapLoaded { get; }
 
-        /// <summary>
-        /// Whether the Background has finished loading.
-        ///</summary>
-        public bool BackgroundLoaded { get; }
-
-        /// <summary>
-        /// Whether the Waveform has finished loading.
-        ///</summary>
-        public bool WaveformLoaded { get; }
-
-        /// <summary>
-        /// Whether the Storyboard has finished loading.
-        ///</summary>
-        public bool StoryboardLoaded { get; }
-
-        /// <summary>
-        /// Whether the Skin has finished loading.
-        ///</summary>
-        public bool SkinLoaded { get; }
-
         /// <summary>
         /// Whether the Track has finished loading.
         ///</summary>

osu.Game/Beatmaps/WorkingBeatmap.cs

@@ -54,10 +54,6 @@ namespace osu.Game.Beatmaps
         #region Load checks
 
         public virtual bool TrackLoaded => loadedTrack != null;
-        public bool WaveformLoaded => waveform.IsResultAvailable;
-        public bool StoryboardLoaded => storyboard.IsResultAvailable;
-        public bool SkinLoaded => skin.IsResultAvailable;
-        public bool BackgroundLoaded => background.IsResultAvailable;
         public virtual bool BeatmapLoaded => beatmapLoadTask?.IsCompleted ?? false;
 
         #endregion