[riscv-port-jdk17u:riscv-port] Withdrawn: 8290496: riscv: Fix build warnings-as-errors with GCC 11

[Fei Yang]

On Tue, 28 Feb 2023 06:35:49 GMT, Dingli Zhang <dzhang at openjdk.org> wrote:

> Please review this backport to riscv-port-jdk17u.
> Backport of [JDK-8290496](https://bugs.openjdk.java.net/browse/JDK-8290496). Applies cleanly.
> 
> Build without --disable-warnings-as-errors after this fix passed on unmatched board with GCC11.

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/riscv-port-jdk17u/pull/2