RFR: 8362557: [macOS] Remove CFont.finalize()

[Phil Race]

Replace CFont.finalize() with a disposer.

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Commit messages:
 - 8362557

Changes: https://git.openjdk.org/jdk/pull/26373/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=26373&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8362557
  Stats: 14 lines in 1 file changed: 9 ins; 1 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/26373.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/26373/head:pull/26373

PR: https://git.openjdk.org/jdk/pull/26373