RFR: 7903735: Remove redundant method in generated code

[Jorn Vernee]

On Tue, 17 Dec 2024 18:39:19 GMT, Nizar Benalla <nbenalla at openjdk.org> wrote:

> Was looking at older issues and saw an opportunity for a refractor.
> I don't see a dependent PR feature for this repo but this is meant to be merged after https://github.com/openjdk/jextract/pull/265

I think this looks good. The important thing here is not the exception type, I think, but the fact that the error message contains the symbol, which is still the case with `findOrThrow`.

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Marked as reviewed by jvernee (Committer).

PR Review: https://git.openjdk.org/jextract/pull/266#pullrequestreview-2511921283