RFR: 8341861: GHA: Use only retention mechanism to remove bundles

[Erik Joelsson]

On Thu, 31 Oct 2024 09:42:54 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

> There have been numerous problems in the past with the logic for removing bundles:
> 
> * [JDK-8340418](https://bugs.openjdk.org/browse/JDK-8340418)
> * [JDK-8336928](https://bugs.openjdk.org/browse/JDK-8336928)
> * [JDK-8338402](https://bugs.openjdk.org/browse/JDK-8338402)
> 
> These problems can be avoided by relying on the [built-in GHA mechanism for specifying a retention limit](https://docs.github.com/en/organizations/managing-organization-settings/configuring-the-retention-period-for-github-actions-artifacts-and-logs-in-your-organization) for these bundles. This PR deletes the code that eagerly removes the bundles prior to the retention limit.
> 
> An additional benefit to preserving the artifacts longer is that it increases the window for being able to download them for extra testing under different configurations than those tested by GHA (e.g. same test, different GC flags).

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/21801#pullrequestreview-2407906704