RFR: 8026427: deprecate obsolete APIs from java.rmi

[Stuart Marks]

Hi all,

Please review this small spec change to deprecate some obsolete RMI APIs, along 
with a bit of associated cleanup. There are no functional changes in this changeset.

Bug:

     https://bugs.openjdk.java.net/browse/JDK-8026427

Webrev:

     http://cr.openjdk.java.net/~smarks/reviews/8026427/webrev.0/

Specdiff:

 
http://cr.openjdk.java.net/~smarks/reviews/8026427/specdiff.0/overview-summary.html

Thanks,

s'marks