[9] RFR: Remove sun.security.util.ObjectIdentifier.equals(ObjectIdentifier) method

[Jason Uh]

Please review this fix, which removes the overloaded 
sun.security.util.ObjectIdentifier.equals(ObjectIdentifier) method.

webrev: http://cr.openjdk.java.net/~juh/8022444/00/
bug: https://bugs.openjdk.java.net/browse/JDK-8022444
Thanks,
Jason