Revert "Process unique visitor metric for Roll-ups (set enable_processing_unique_visitors_multiple_sites = 1)" #15701
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Reverts #15450
The previous PR will only work when
enable_fingerprinting_across_websites
is also enabled. This is a privacy issue though. As a result archiving will break with roll up reporting etc. I reckon this PR should therefore be reverted as it broke RollUpReporting and fixing that would cause privacy issues.