RFR (XS): 8129518: Remove ParOldGC tests from the jprt hotspot testset

[Mikael Vidstedt]

Please review the following small change which removes all the ParOldGC 
test targets from the jprt hotspot testset. The ParOldGC tests are run 
with the -XX:+UseParallelOldGC flag, but that has for some time already 
been the default when using the Parallel GC, and there are already 
corresponding tests which already test that configuration - namely the 
ParallelGC ones. This change simply removes the redundant test targets.

Bug: https://bugs.openjdk.java.net/browse/JDK-8129518
Webrev: http://cr.openjdk.java.net/~mikael/webrevs/8129518/webrev.00/webrev/

Cheers,
Mikael