RFR: 8286092: Remove dead windows stack code

Wed May 4 12:55:17 UTC 2022

On Tue, 3 May 2022 22:34:10 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> In reviewing JDK-[8285832](https://bugs.openjdk.java.net/browse/JDK-8285832) @iklam noticed the code following the minimum stack size calculation is dead.  This change removes the dead code, plus an unused os_thread_counter nearby.
> This code predates mercurial.
> Tested with tier1 on windows-x64 and windows-x64-debug.

Yes, thanks David.  You forced me to look at old code.  It was for Solaris code and not for the windows address space size problems we had with creating threads once.  Thanks for the review.

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PR: https://git.openjdk.java.net/jdk/pull/8524