Remove inactive business units from business unit field under Offer Info of create requisition

The business requested that inactive business units be taken out of the business unit field under the Offer Info section of create a requisition. Currently, there are multiple business units in the list that we no longer use. This can be confusing for those that create requisitions as they should not come up in this list. Is there a way to remove inactive business units from this field under Offer Info? I have not seen the option in VB studio to do this, is there somewhere else that this needs to be done?