RFR: 8254264: Remove redundant cross_modify_fence()

[Daniel D.Daugherty]

On Mon, 19 Oct 2020 14:01:27 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

>> Thanks @robehn and @dholmes-ora for the reviews!
>
>> I merged this patch together with #428 (which makes AArch64 use cross modify fence) and ran it on AArch64 with the
>> "-XX:+VerifyCrossModifyFence" set. A complete tier1 ran successfully, and I'm waiting on the results of a much wider
>> run.
> 
> Ok, let me know when you are okay and I will integrate.

Heads-up: The build and test tasks appear to be unhappy.

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PR: https://git.openjdk.java.net/jdk/pull/655