RFR(XS): 8076471: Remove hprof agent tests in JDK

[Yekaterina Kantserova]

Hi,

Could I please have a review of this fix.
bug: https://bugs.openjdk.java.net/browse/JDK-8076471
webrev: http://cr.openjdk.java.net/~ykantser/8076471/webrev.00

More details can be found in JEP 240: Remove the JVM TI hprof Agent 
(https://bugs.openjdk.java.net/browse/JDK-8046661).

Thanks,
Katja