RFR: 8344146: Remove temporary font file tracking code.

[Harshitha Onkar]

On Tue, 24 Dec 2024 18:26:06 GMT, Phil Race <prr at openjdk.org> wrote:

> The font data usage tracker only ever did anything if there was a SecurityManager installed and it restricted access to creating files.
> Since there can no longer be a Security Manager this is completely dead code and should be removed.

Changes & build LGTM.

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Marked as reviewed by honkar (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/22876#pullrequestreview-2544054276