RFR: 8268727: Remove unused slowpath locking method in OptoRuntime [v2]

[Dean Long]

On Mon, 21 Jun 2021 12:31:59 GMT, Miao Zheng <github.com+20216587+miao-zheng at openjdk.org> wrote:

>> 8268727: Remove unused slowpath locking method in OptoRuntime
>
> Miao Zheng has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR.

I agree, test failures seem unrelated to this change.

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PR: https://git.openjdk.java.net/jdk/pull/4490