RFR(s): 8034999 change rmidRunning to a simple lookup (RMI test library)

[Stuart Marks]

Hi all,

Please review this change to remove a redundant timing-retry loop from the 
rmidRunning() routine of the RMI test library. It is replaced with a simple rmid 
registry lookup that returns status immediately, without retries.

Bug:

    https://bugs.openjdk.java.net/browse/JDK-8034999

Webrev:

    http://cr.openjdk.java.net/~smarks/reviews/8034999/webrev.0/

Thanks,

s'marks