FIX uses unit repair values with RepairsUnits trait, Buildings use right repair values, nuke unused GeneralInfo

OpenRA.Game/Traits/RepairsUnits.cs

@@ -0,0 +1,14 @@
+
+using System;
+
+namespace OpenRA.Traits
+{
+
+	public class RepairsUnitsInfo : StatelessTraitInfo<RepairsUnits>
+	{
+		public readonly float URepairPercent = 0.2f;
+		public readonly int URepairStep = 10;	
+	}
+	
+	public class RepairsUnits{}
+}