Remove extraneous resource

Author: rcx

src/main/java/the/bytecode/club/jda/Resources.java

@@ -36,7 +36,6 @@ public class Resources {
     public static ImageIcon javaIcon = new ImageIcon(Resources.class.getClass().getResource("/java.png"));
 
     public static ImageIcon fileNavigatorIcon = new ImageIcon(Resources.class.getClass().getResource("/icon.png"));
-    public static ImageIcon workPaneIcon = new ImageIcon(Resources.class.getClass().getResource("/icon.png"));
 
     public static ArrayList<BufferedImage> iconList;
     public static BufferedImage icon;