RFR: 8305079: Remove finalize() from compiler/c2/Test719030

[Afshin Zafari]

The `finalize()` method is replaced by a Cleaner callback.

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Commit messages:
 - Removed finalize() method.

Changes: https://git.openjdk.org/jdk/pull/13418/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13418&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8305079
  Stats: 8 lines in 1 file changed: 2 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/13418.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13418/head:pull/13418

PR: https://git.openjdk.org/jdk/pull/13418