Turn off Primary Contact Requirement

Is there an option to turn off the requirement for a Primary Contact on a constituent table? I don't see an option when I am in the Primary Contact properties in Power Apps.

We are trying to clean up old/inactive constituents - many of which do not have a primary contact and are so old, we are not sure who it would be. Because we can't leave the primary contact blank, we are not able to deactivate these old accounts. 

If you don't find a way to do so, I would just create one "N/A" or "Clean Up" contact and use it on each constituent you are trying to deactivate. 

We actually created a fake contact record called "Unknown Name" and use it to deactivate all old records. :)