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

[Miao Zheng]

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. The pull request contains one new commit since the last revision:
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>   8268727: Remove unused slowpath locking method in OptoRuntime

The same test cases fail in other Pull requests on windows,  for example: https://github.com/openjdk/jdk/pull/4534.
I think these test cases fail are random.

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