RFR: [leyden] Do not enable -XX:AOTMode=on by default

[Ioi Lam]

On Fri, 27 Jun 2025 07:39:22 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Test failures.

Fixed.

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PR Comment: https://git.openjdk.org/leyden/pull/82#issuecomment-3013937045