RFR: 8287558: Remove remset coarsening stats during g1 remset summary printing

[tqxia]

On Fri, 3 Jun 2022 07:30:43 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> > I think "Concurrent refinement threads times" and "Sampling task time" in "After GC RS summary" also have similar issues: they are all-zeros because the data does not get changed in the last GC cycle.
> > A possible way to fix this adding an additional flag to differentiate between "Before GC RS summary" and "After GC RS summary", I can include this fix in the current PR, if that is OK.
> 
> Let's keep separate issues separate. I filed https://bugs.openjdk.java.net/browse/JDK-8287771

Sure.

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PR: https://git.openjdk.java.net/jdk/pull/8971