Update BitmapLabel.cs

removed namespace from other project

Author: Meragon

System/Windows/Forms/BitmapLabel.cs

@@ -3,7 +3,6 @@
 using System.Linq;
 using System.Text;
 using System.Drawing;
-using DiaLib.Blocks.Signal_Manipulation;
 using UnityEngine;
 using Color = System.Drawing.Color;