RFR: 8358891: Remove the PerfDataSamplingIntervalFunc code

[Aleksey Shipilev]

On Tue, 10 Jun 2025 12:34:47 GMT, Casper Norrbin <cnorrbin at openjdk.org> wrote:

> Hi everyone,
> 
> #24872 removed the statsampler and the associated flag `PerfDataSamplingInterval`. However, the constraint function for the flag got overlooked. This change removes that function.

Looks fine to me, thanks.

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Marked as reviewed by shade (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/25722#pullrequestreview-2924115292