RFR: 8309909: remove test nsk.jvmti test objmonusage006 from ProblemList-Virtual.txt

[Chris Plummer]

On Thu, 22 Jun 2023 01:23:46 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

> The following bug was closed as "Cannot Reproduce":
> [8300709](https://bugs.openjdk.org/browse/JDK-8300709) nsk/jvmti/GetObjectMonitorUsage/objmonusage006 test asserts with virtual thread wrapper
> 
> I was not able to reproduce the assert in thousands mach5 runs on multiple debug builds.
> Also, the original sources were significantly changed, so it is not clear anymore in what context the assert was fired.
> The test is problem-listed in `ProblemList-Virtual.txt`.
> 
> This sub-task is to unproblem-list the test:
>    `vmTestbase/nsk/jvmti/GetObjectMonitorUsage/objmonusage006/TestDescription.java`
>  
> If the original asset is reproduced again then the plan is to reopen the [8300709](https://bugs.openjdk.org/browse/JDK-8300709) and update it with the details needed for issue investigation.

Approved and trivial.

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Marked as reviewed by cjplummer (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14610#pullrequestreview-1492370042