RFR: 8327389: Remove use of HOTSPOT_BUILD_USER

[Aleksey Shipilev]

On Wed, 6 Mar 2024 17:17:28 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> I agree that it is good to get rid of this. However, the reason it has stuck around for so long is, eh, that it has been around for so long, so it is a bit unclear what or who could be relying on this.

The example I know is to get a signal that test infrastructures actually picked up my ad-hoc binary build, not some other build from somewhere else. Maybe we should revisit the `git describe` hash idea we kicked along for a while now: https://bugs.openjdk.org/browse/JDK-8274980?focusedId=14452017 -- which would cover that case too.

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PR Comment: https://git.openjdk.org/jdk/pull/18136#issuecomment-1981482991