RFR: 8318649: G1: Remove unimplemented HeapRegionRemSet::add_code_root_locked

[Albert Mingkun Yang]

On Mon, 23 Oct 2023 09:30:02 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Trivial removing dead code.

Thanks for the review.

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PR Comment: https://git.openjdk.org/jdk/pull/16305#issuecomment-1774950050