Revert "Merge branch 'master-PixelConditionsData-v2' into 'master'"
This reverts merge request !34612 (merged)
!34658 (merged) removed ATLAS_THREAD_NOT_SAFE from MultiHisto::Write.
This reverts merge request !34612 (merged)
!34658 (merged) removed ATLAS_THREAD_NOT_SAFE from MultiHisto::Write.