RFR: 8375241: Simplify --with-native-debug-symbols-level option implementation

[Julian Waters]

On Wed, 14 Jan 2026 11:47:00 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Do you mean the addition of the plain -g or the -g with NATIVE_DEBUG_SYMBOLS_LEVEL appended to it? The former I just added for correctness, it's not strictly needed.
>
> Yes, I am curious why do we need a plain `-g`.

It's more just paranoia and for correctness really. I can remove it if desired.

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PR Review Comment: https://git.openjdk.org/jdk/pull/29214#discussion_r2690159112