Remove old InetAddress DNS cache from preloaded-classes.

For https://android-git.corp.google.com/g/37614 .
diff --git a/preloaded-classes b/preloaded-classes
index ec4d74c..90bbb37 100644
--- a/preloaded-classes
+++ b/preloaded-classes
@@ -753,10 +753,8 @@
 java.math.Multiplication
 java.net.ContentHandler
 java.net.InetAddress
-java.net.InetAddress$CacheElement
 java.net.InetAddress$WaitReachable
 java.net.JarURLConnection
-java.net.NegativeCache
 java.net.NetPermission
 java.net.ProxySelectorImpl
 java.net.Socket$ConnectLock