RFR: 8362151: Remove unnecessary ClassLoaderDataGraph friend classes

[Thomas Schatzl]

On Mon, 14 Jul 2025 15:10:01 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this trivial removal of some obsolete code related to friend declarations of deleted classes.
>> 
>> Testing: gha
>> 
>> Thanks,
>>   Thomas
>
> Looks good, looks trivial.  Thanks for cleaning this up.

Thanks @coleenp @shipilev  for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/26290#issuecomment-3072797908