RFR: 8349559: ci doesn't need to store protection domain

[Vladimir Ivanov]

On Thu, 6 Feb 2025 17:14:44 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> The compiler interface has a protection_domain field that it uses for matching in its version of not-yet loaded classes, but class loading only uses (class, class-loader) as an identifier for loaded classes so the compiler interface should do the same.  From the code, I can't see any situation where the protection_domain wouldn't match if name and class loader match.
> Tested with tier1-7.

Nice cleanup! Looks good.

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Marked as reviewed by vlivanov (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/23496#pullrequestreview-2600079707