Revert "Add default route constants to RouteInfo."

This reverts commit e610dd3e5881ef7151597e7f34c84a6d293e0e21

Change-Id: Ide6d7f3b935da41477b736ef0ef20ec9872563e1
diff --git a/core/java/android/net/RouteInfo.java b/core/java/android/net/RouteInfo.java
index 0c84f78..112e143 100644
--- a/core/java/android/net/RouteInfo.java
+++ b/core/java/android/net/RouteInfo.java
@@ -45,18 +45,6 @@
     private final boolean mIsDefault;
     private final boolean mIsHost;
 
-    /**
-     * The IPv4 default route.
-     */
-    public static final RouteInfo IPV4_DEFAULT = new RouteInfo(
-        new LinkAddress(Inet4Address.ANY, 0));
-
-    /**
-     * The IPv6 default route.
-     */
-    public static final RouteInfo IPV6_DEFAULT = new RouteInfo(
-        new LinkAddress(Inet6Address.ANY, 0));
-
     public RouteInfo(LinkAddress destination, InetAddress gateway) {
         if (destination == null) {
             if (gateway != null) {