jmx-dev RFR 8060692 Delete com/sun/jmx/snmp and sun/management/snmp from OpenJDK

[shanliang]

Hi,

SNMP is not part of OpenJDK and SNMP packages are not compiled in 
OpenJDK, so the SNMP sources should be deleted from the OpenJDK

Bug: https://bugs.openjdk.java.net/browse/JDK-8060692
Webrev: http://cr.openjdk.java.net/~sjiang/JDK-8060692/00/

Thanks,
Shanliang