stmDeleteTransition
Deletes the transition from source_box_name to target_box_name carrying the given label. If more than one transition satisfies this, one arbitrary is deleted.stmDeleteTransition (stm_context, chart name, source_box_name,
target_box_name, label)
See Function Status Codes for the list of possible values.
Input/Output Argument Type STM context descriptor that was returned by stmInitImport