[OE-core] RFC: removing buildhistory support for flat versioned package info

[Paul Eggleton]

Hi all,

One feature carried over from packagehistory.bbclass into buildhistory.bbclass 
was the ability for it to optionally output PE:PV-PR named package info files 
and then create a "latest" symlink to the latest one, which was useful in the 
absence of the integration with git which buildhistory now has. This can 
currently be enabled by setting BUILDHISTORY_KEEP_VERSIONS to 1.

I suspect not many people even know this feature exists let alone use it, and 
looking at the code it could be simplified a bit by not supporting it at all. 
Are there any objections to removing it?

Cheers,
Paul

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Paul Eggleton
Intel Open Source Technology Centre