Tvheadend

Hi.
I have installed on my tv-sat system (pc with Lubuntu + Tvheadend + minisatip) a Telestar Digibit Twin device. I know that with this I have duplicated the placement in the local network of tv-sat channels and, logically, Tvhedend shows in the Configuration > DVB Inputs section, under the Network adapters heading, both: Digibit Twin and minisatip. I want minisatip to manage the tuners and therefore I don't want Tvhedend to see Digibit Twin and show it as an available adapter. I want only minisatip to appear. I have tried by checking the "Disable UPnP" box in Settings > General > SAT>IP and adding TVH_ARGS="--satip_xml http://<minisatip's ip>/description.xml" to the beginning of Tvheadend, but Digibit Twin continues to appear in the DVB Inputs list.
All the queries I see have exactly the opposite problem, Tvhedend does not find Digibit and what I want is for it not to find it. How?