Based on long experience, we believe that respondents should see calibration concepts (for purchase intent questions) that include all the attributes brought into their conjoint exercise. Therefore, we don't permit hiding some attributes shown earlier in the Choice Tournament from appearing in the purchase intent questions.
The final Calibration (purchase intent) section is optional. Not all researchers include it. It is only used for re-calibrating the "None" utility to be something related to the 5-point purchase intent scale. So, if you don't need the None to be recalibrated (if you are OK with the None parameter staying at its original scaling that is given from the Screener section, where the None is the utility of the "Not a Possibility" alternative) then you should just skip the Calibration section to avoid the problem you are trying to address.