RFR: 8338000: [macos] Remove GlassFullscreenWindow

[Michael Strauß]

On Sun, 17 Nov 2024 20:18:28 GMT, Martin Fox <mfox at openjdk.org> wrote:

> The GlassFullscreenWindow class hasn't been instantiated since applet support was removed (JDK-8201538). This PR removes the class and the one (unused) member variable of that type.

The code changes look good. I built and tested the changes, everything works as expected.

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Marked as reviewed by mstrauss (Reviewer).

PR Review: https://git.openjdk.org/jfx/pull/1641#pullrequestreview-2468298959