Removing a supplier from a approved RFQ (sourcing event) prior to publish the event

Is it possible to remove a supplier from a sourcing event because from the time the sourcing event was created and approved the supplier was inactivated,  Now that the customer is trying to publish the RFQ they get an error that the supplier is inactivate.  Is there a way to remove the supplier between when and after the event has been approved and is now ready to be published?  This is causing our customers issues.  Any help would be greatly appreciated.