RFR: 8316670: Remove effectively unused nmethodBucket::_count [v2]

[Thomas Schatzl]

On Thu, 21 Sep 2023 19:15:02 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   dlong review
>
> Make sense.

Thanks @vnkozlov @dean-long for your reviews.

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PR Comment: https://git.openjdk.org/jdk/pull/15863#issuecomment-1733006817