it's forward declared twice

Index: netracker.h
--- netracker.h.orig
+++ netracker.h
@@ -306,9 +306,6 @@ class Netracker { (public)
 		int dirty;
 	};
 
-	// Fwd def for our map
-	class tracked_client;
-
 	class ssid_alert_data {
 	public:
 		ssid_alert_data() {