Withdrawn: 8367984: Eliminate offset_of in vmStructs

[duke]

On Thu, 18 Sep 2025 12:44:27 GMT, Francesco Andreuzzi <fandreuzzi at openjdk.org> wrote:

> There are several usages of `offset_of` in `vmStructs`, they can be replaced with standard `offsetof` due to [JDK-8367016](https://bugs.openjdk.org/browse/JDK-8367016).
> 
> Passes `tier1`.

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/jdk/pull/27362