Symptoms

How to remove SmartForms integration from workflow?
 

Diagnoses

There is no OOB functionality in the current versions of our product which allows to remove SmartForms integration from workflow (added via SF Client Event or Process Wizard called SFs Integration). There is an existing FR for this functionality (internal ID 40574):

Enhancement request ? Ability to remove Integration from workflow to reuse the WF (SPWFI, InfoPath, SP Events Integration and SmartForms Integration).

When you integrate your workflows with forms via SF Client Event or Process Wizard called SFs Integration you can think of it as "tight-coupling" approach which is less flexible, and for better flexibility you may consider setting up this integration via Default Client Event (loose-coupling).
 

Resolution

There is no OOB options to delete such integration workaround is to create new process and paste activities/events/lines from old integrated process into new one without SmartForms integration.