RFR: 8260577: Unused code in AbstractCompiler after Shark compiler removal

[Aleksey Shipilev]

On Thu, 28 Jan 2021 09:41:48 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

> After removal of the Shark compiler with [JDK-8171853](https://bugs.openjdk.java.net/browse/JDK-8171853) in JDK 10, some methods in AbstractCompiler are unused.
> 
> Thanks,
> Tobias

Looks fine. I do wonder if `CICompileOSR` and `CICompileNatives` were also for Shark, and maybe the flags and their relevant blocks could be eliminated as well.

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Marked as reviewed by shade (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/2281