Remove a constant that was zero on all platforms.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - 8387262: Enum constant frame::pc_return_offset is always zero Changes: https://git.openjdk.org/jdk/pull/31666/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=31666&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8387262 Stats: 54 lines in 17 files changed: 0 ins; 41 del; 13 mod Patch: https://git.openjdk.org/jdk/pull/31666.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/31666/head:pull/31666 PR: https://git.openjdk.org/jdk/pull/31666
