don't really need the full (external) window dimensions, just the client-area stuff

Blarg.GameFramework/IPlatformWindow.cs

@@ -7,10 +7,6 @@ namespace Blarg.GameFramework
 		Rect ClientRectangle { get; }
 		int ClientWidth { get; }
 		int ClientHeight { get; }
-		int X { get; }
-		int Y { get; }
-		int Width { get; }
-		int Height { get; }
 	}
 }