RFR: 8342913: Remove calls to doPrivileged in media

[Kevin Rushforth]

On Mon, 28 Oct 2024 14:57:17 GMT, Andy Goryachev <angorya at openjdk.org> wrote:

> Removes doPrivileged in the following module:
> 
> - javafx.media
> 
> See JDK-8342441 for details.
> 
> As a helpful hint for reviewers, I recommend reviewing this using the "Hide whitespace" option.

I see a few now-unneeded `@SuppressWarnings("removal")` annotations in `NativeMediaManager.java`, but otherwise looks good.

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PR Review: https://git.openjdk.org/jfx/pull/1612#pullrequestreview-2405689681