Drop not needed interaction.

reference of Software Instance does not impact its role's calculation.

master/bt5/slapos_erp5/WorkflowTemplateItem/portal_workflow/local_permission_slapos_interaction_workflow/interactions/SoftwareInstance_edit.xml

@@ -56,7 +56,6 @@
             <key> <string>method_id</string> </key>
             <value>
               <list>
-                <string>_setReference</string>
                 <string>_setSpecialise.*</string>
                 <string>_setAggregate.*</string>
               </list>

master/bt5/slapos_erp5/bt/revision

-63
+64
\ No newline at end of file