RFR: 8254353: Remove unused non-product flags

[Igor Ignatyev]

On Sat, 10 Oct 2020 15:01:39 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> Found a few non-product flags that has no implementation and could be removed:
> 
> StressDerivedPointers
> PrintVMMessages
> TraceProfileInterpreter
> VerifyCompiledCode
> ProfilerNodeSize
> 
> I suggest removing them.

LGTM

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Marked as reviewed by iignatyev (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/590