RFR: 8361693: Remove Klass::clean_subklass_tree()

[Thomas Schatzl]

On Wed, 9 Jul 2025 15:18:20 GMT, Zhengyu Gu <zgu at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this inlining of Klass::clean_subklass_tree because it's only used in one place and replaces only one call. There does not seem to be any advantage having the extra method.
>> 
>> Testing: local compilation, gha
>> 
>> Thanks,
>>   Thomas
>
> LGTM

Thanks @zhengyu123 @kimbarrett for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/26220#issuecomment-3057353435