Should we deprecate the InventoryItemVariance entity?

[Jacopo Cappellato]

What about deprecating the InventoryItemVariance entity?
It seems duplicated by the newer InventoryItemDetail entity: we could 
use the latter with the following mapping:

InventoryItemVariance.varianceReasonId --> InventoryItemDetail.reasonEnumId

and

InventoryItemVariance.comments --> InventoryItemDetail.description

What do you think?

Jacopo