diff --git a/homeassistant/components/co2signal/sensor.py b/homeassistant/components/co2signal/sensor.py
index 09f56e1083f..c6582ac4c8c 100644
--- a/homeassistant/components/co2signal/sensor.py
+++ b/homeassistant/components/co2signal/sensor.py
@@ -5,7 +5,6 @@ from dataclasses import dataclass
 from datetime import timedelta
 from typing import cast
 
-from homeassistant import config_entries
 from homeassistant.components.sensor import SensorEntity, SensorStateClass
 from homeassistant.const import ATTR_ATTRIBUTION, PERCENTAGE
 from homeassistant.helpers import update_coordinator
@@ -45,15 +44,6 @@ SENSORS = (
 )
 
 
-async def async_setup_platform(hass, config, add_entities, discovery_info=None):
-    """Set up the CO2signal sensor."""
-    await hass.config_entries.flow.async_init(
-        DOMAIN,
-        context={"source": config_entries.SOURCE_IMPORT},
-        data=config,
-    )
-
-
 async def async_setup_entry(hass, entry, async_add_entities):
     """Set up the CO2signal sensor."""
     coordinator: CO2SignalCoordinator = hass.data[DOMAIN][entry.entry_id]