Clean up temporary files after test
Clean up temporary files after test

If the test fails to remove the temporary file, this cleans up after it.

Contributes to issue CURA-3497.

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