Remove the deprecated WAngle.Range accessor for Lua

OpenRA.Game/WDist.cs

@@ -143,7 +143,6 @@ namespace OpenRA
 				switch (key.ToString())
 				{
 					case "Length": return Length;
-					case "Range": TextNotificationsManager.Debug("WDist.Range is deprecated. Use WDist.Length instead"); return Length;
 					default: throw new LuaException($"WDist does not define a member '{key}'");
 				}
 			}