Remove dead code.

Also adds a TYPE_VPN so the VPN can be strongly typed.

Change-Id: Ibf39450c480f16ce5ab4c25b47965691b844fb92
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index 0297c84..fb4912f 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -491,11 +491,17 @@
      */
     public static final int TYPE_PROXY = 16;
 
-    /** {@hide} */
-    public static final int MAX_RADIO_TYPE   = TYPE_PROXY;
+    /**
+     * A virtual network using one or more native bearers.
+     * It may or may not be providing security services.
+     */
+    public static final int TYPE_VPN = 17;
 
     /** {@hide} */
-    public static final int MAX_NETWORK_TYPE = TYPE_PROXY;
+    public static final int MAX_RADIO_TYPE   = TYPE_VPN;
+
+    /** {@hide} */
+    public static final int MAX_NETWORK_TYPE = TYPE_VPN;
 
     /**
      * If you want to set the default network preference,you can directly
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index e865e88..13ad5d2 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -60,7 +60,6 @@
 import android.database.ContentObserver;
 import android.net.CaptivePortalTracker;
 import android.net.ConnectivityManager;
-import android.net.DummyDataStateTracker;
 import android.net.IConnectivityManager;
 import android.net.INetworkManagementEventObserver;
 import android.net.INetworkPolicyListener;
@@ -925,8 +924,6 @@
         @Override
         public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config) {
             switch (config.radio) {
-                case TYPE_DUMMY:
-                    return new DummyDataStateTracker(targetNetworkType, config.name);
                 case TYPE_WIMAX:
                     return makeWimaxStateTracker(mContext, mTrackerHandler);
                 case TYPE_PROXY: