RFR: 8297572: Remove unused PrecisionStyle::Precise

[Kim Barrett]

On Wed, 14 Dec 2022 14:50:10 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple change of removing some effectively dead code.
> 
> Test: hotspot_gc

src/hotspot/share/gc/shared/space.cpp line 62:

> 60:         // later card.  Figure out where the object ends.
> 61:         // Use the block_size() method of the space over which
> 62:         // the iteration is being done.  That space (e.g. CMS) may have

What is "CMS" here?

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PR: https://git.openjdk.org/jdk/pull/11676