Withdrawn: 8315999: Improve Date toString performance

[duke]

On Mon, 11 Sep 2023 12:12:17 GMT, Shaojin Wen <duke at openjdk.org> wrote:

> improve date toString performance, includes:
> 
> java.util.Date.toString
> java.util.Date.toGMTString
> java.time.Instant.toString
> java.time.LocalDate.toString
> java.time.LocalDateTime.toString
> java.time.LocalTime.toString

This pull request has been closed without being integrated.

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PR: https://git.openjdk.org/jdk/pull/15658