Removed unused field

Author: cmaglie

app/src/processing/app/EditorLineStatus.java

@@ -52,7 +52,6 @@ public class EditorLineStatus extends JComponent {
   String text = "";
   String name = "";
   String port = "";
-  String serialnumber = "";
 
   public EditorLineStatus() {
     background = Theme.getColor("linestatus.bgcolor");
@@ -136,10 +135,6 @@ public void setPort(String port) {
     this.port = port;
   }
 
-  public void setSerialNumber(String serialnumber) {
-    this.serialnumber = serialnumber;
-  }
-
   public Dimension getPreferredSize() {
     return scale(new Dimension(300, height));
   }