See the first post in this thread for a how-to on posting your config on the forum. It preserves the formatting and helps with troubleshooting.
Not sure why they are showing. Your config looks correct (unless there is a formatting issue in your config) is there anything in your log showing an error with the nest sensor component?
I know this is old, but to hide these, just edit your customize.yaml file and set the sensors you want hidden to hidden: true. You’ll need to check what the entity_id of Nest sensor is actually set as. All of mine are family_room_thermostat_nest but yours might just be thermostat_nest.