Remove superfluous output_value parameter
Remove superfluous output_value parameter

It's not used any more since we don't test the actual instance container any more.

Contributes to issue CURA-3497.

Curahelper/Cura,Curahelper/Cura,ynotstartups/Wanhao,ynotstartups/Wanhao,hmflash/Cura,fieldOfView/Cura,hmflash/Cura,fieldOfView/Cura