8263825: Remove unused and commented out member from NTLMException

Reviewed-by: mullan, redestad

Author: alblue

src/java.base/share/classes/com/sun/security/ntlm/NTLMException.java

@@ -45,12 +45,6 @@ public final class NTLMException extends GeneralSecurityException {
      */
     public static final int NO_DOMAIN_INFO = 2;
 
-    /**
-     * If the domain provided by the client does not match the one received
-     * from server.
-     */
-    //public final static int DOMAIN_UNMATCH = 3;
-
     /**
      * If the client name is not found on server's user database.
      */