RFR: 8345589: Simplify Windows definition of strtok_r

[Julian Waters]

On Fri, 6 Dec 2024 06:25:12 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this change to move the Windows-specific definition of strtok_r
> to globalDefinitions_visCPP.hpp.  In addition, the unused S_ISCHR macro is
> removed and the S_ISFIFO macro is also moved.
> 
> Testing: mach5 tier1

Marked as reviewed by jwaters (Committer).

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PR Review: https://git.openjdk.org/jdk/pull/22597#pullrequestreview-2483923797