8066633: Fix deprecation warnings in java.rmi module

Reviewed-by: darcy, lancea
diff --git a/jdk/src/java.rmi/share/classes/sun/rmi/registry/RegistryImpl.java b/jdk/src/java.rmi/share/classes/sun/rmi/registry/RegistryImpl.java
index 37451a3..7fd4d5b 100644
--- a/jdk/src/java.rmi/share/classes/sun/rmi/registry/RegistryImpl.java
+++ b/jdk/src/java.rmi/share/classes/sun/rmi/registry/RegistryImpl.java
@@ -336,13 +336,12 @@
      * Main program to start a registry. <br>
      * The port number can be specified on the command line.
      */
-    @SuppressWarnings("deprecation")
     public static void main(String args[])
     {
         // Create and install the security manager if one is not installed
         // already.
         if (System.getSecurityManager() == null) {
-            System.setSecurityManager(new RMISecurityManager());
+            System.setSecurityManager(new SecurityManager());
         }
 
         try {