RFR: 8350571: Remove mention of Tonga test suite from JMX tests

[Kevin Walls]

On Mon, 24 Feb 2025 21:53:24 GMT, Leonid Mesnik <lmesnik at openjdk.org> wrote:

>> That's a bit harsh, I wasn't going to say there was no logic to this! 8-)
>> Code this old and quirky (and duplicated...) is kind of legacy by definition. 8-)
>
> Yes, better to rewrite it of course, but now it becomes unclear why it was written at all.

I will go with this change for now, maybe we can come back here!

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PR Review Comment: https://git.openjdk.org/jdk/pull/23747#discussion_r1968476603