Remove DhcpInfoInternal

First step in accepting a set of patches.
bug:6799630

Change-Id: I6c894c60aeb3022960c2aaa45451bb1dde2b493b

core/java/android/net/RouteInfo.java

@@ -76,6 +76,10 @@ public class RouteInfo implements Parcelable {
         this(null, gateway);
     }
 
+    public RouteInfo(LinkAddress host) {
+        this(host, null);
+    }
+
     public static RouteInfo makeHostRoute(InetAddress host) {
         return makeHostRoute(host, null);
     }