RFR: JDK-8294901: remove pre-VS2017 checks in Windows related coding [v2]

[Martin Doerr]

On Fri, 7 Oct 2022 13:29:48 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> After "8293162: Drop support for VS2017" limited current support to VS2019 and VS2022 it is most likely safe to remove various checks/workarounds related to older VS compilers like VS2015 or VS2013.
>
> Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:
> 
>   wepoll.c is 3rd party code, do not change it

This version LGTM.

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Marked as reviewed by mdoerr (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10600