[7u] review and approval request for 8007515: update RMI tests on ProblemList.txt

[Stuart Marks]

Hi all,

A simple request for code review *and* integration approval for the following 
bugfix:

    http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8007515

    http://cr.openjdk.java.net/~smarks/reviews/8007515/webrev.0/

Now that all the RMI test fixes have been backported, this reconciles the 
ProblemList.txt file between jdk8 and jdk7u so that the same RMI tests are 
excluded on each release. This ends up removing a few dozen RMI tests from the 
jdk7u problem list, leaving just four.

Thanks,

s'marks