RFR: 8359759: Remove the FXPermission class

[Kevin Rushforth]

On Tue, 9 Dec 2025 10:38:50 GMT, Lukasz Kostyra <lkostyra at openjdk.org> wrote:

> As PR title says, this change removes the FXPermission class.
> 
> The class was not used in any place in JavaFX. It was marked deprecated in JFX24 and also marked for-removal, with plans to remove it in 26.
> 
> I ran both local Windows tests and CI tests with this change and, as expected, there was no difference in test results (all passed).

LGTM

@lukostyra You can create the CSR when ready.

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Marked as reviewed by kcr (Lead).

PR Review: https://git.openjdk.org/jfx/pull/2002#pullrequestreview-3559183342