Remove track property on note event. Attach contextual state on skin evaluation.

Assets/Cryville/Crtr/Chart.cs

@@ -377,14 +377,6 @@ namespace Cryville.Crtr {
 				}
 			}
 
-			public Note() {
-				SubmitPropSrc("track", new PropSrc.Float(() => {
-					var i = motions.FirstOrDefault(m => m.RelativeNode == null && m.Name == "track");
-					if (i == null) return ((Vec1)ChartPlayer.motionRegistry["track"].InitValue).Value;
-					else return ((Vec1)i.AbsoluteValue).Value;
-				}));
-			}
-
 			public override EventList GetEventsOfType(string type) {
 				switch (type) {
 					case "judges": return new EventList<Judge>(judges);