RFR: JDK-8273877: os::unsetenv unused

[Matthias Baesken]

On Fri, 17 Sep 2021 11:00:37 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> Please review this small change.
> It seems the HS function os::unsetenv is not used any more for some time and could be removed.
> 
> Thanks, Matthias

Hi Thomas, thanks for the review !

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PR: https://git.openjdk.java.net/jdk/pull/5561