RFR: 8343486: Remove unnecessary @SuppressWarnings annotations and -Xlint:-foo options [v2]

[Naoto Sato]

On Tue, 5 Nov 2024 17:01:07 GMT, Chen Liang <liach at openjdk.org> wrote:

> Sorry for coming late, but I think bidi/icu is an external library and its updates are tracked by i18n engineers. We might have to revert those specific changes for library parity dependent on i18n engineers' discretion.

Thank you, Chen. I was aware that the ICU file was modified and I thought it was OK, as ICU sources are already diverted, not identical to the upstream. So unless the modification conflicts with the upstream it's fine.

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PR Comment: https://git.openjdk.org/jdk/pull/21859#issuecomment-2457848064