diff --git a/homeassistant/components/modbus/cover.py b/homeassistant/components/modbus/cover.py
index ca00576770e..2317bc5401f 100644
--- a/homeassistant/components/modbus/cover.py
+++ b/homeassistant/components/modbus/cover.py
@@ -49,12 +49,7 @@ async def async_setup_platform(
     discovery_info: DiscoveryInfoType | None = None,
 ):
     """Read configuration and create Modbus cover."""
-    if discovery_info is None:
-        _LOGGER.warning(
-            "You're trying to init Modbus Cover in an unsupported way."
-            " Check https://www.home-assistant.io/integrations/modbus/#configuring-platform-cover"
-            " and fix your configuration"
-        )
+    if discovery_info is None:  # pragma: no cover
         return
 
     covers = []
diff --git a/homeassistant/components/modbus/fan.py b/homeassistant/components/modbus/fan.py
index 7fabff25711..a4d4265846d 100644
--- a/homeassistant/components/modbus/fan.py
+++ b/homeassistant/components/modbus/fan.py
@@ -20,7 +20,7 @@ async def async_setup_platform(
     hass: HomeAssistant, config: ConfigType, async_add_entities, discovery_info=None
 ):
     """Read configuration and create Modbus fans."""
-    if discovery_info is None:
+    if discovery_info is None:  # pragma: no cover
         return
     fans = []
 
diff --git a/homeassistant/components/modbus/light.py b/homeassistant/components/modbus/light.py
index f56b01ff001..3eae5ed3db3 100644
--- a/homeassistant/components/modbus/light.py
+++ b/homeassistant/components/modbus/light.py
@@ -20,8 +20,9 @@ async def async_setup_platform(
     hass: HomeAssistant, config: ConfigType, async_add_entities, discovery_info=None
 ):
     """Read configuration and create Modbus lights."""
-    if discovery_info is None:
+    if discovery_info is None:  # pragma: no cover
         return
+
     lights = []
     for entry in discovery_info[CONF_LIGHTS]:
         hub: ModbusHub = hass.data[MODBUS_DOMAIN][discovery_info[CONF_NAME]]
diff --git a/homeassistant/components/modbus/switch.py b/homeassistant/components/modbus/switch.py
index 98e15d5b311..820e43419a0 100644
--- a/homeassistant/components/modbus/switch.py
+++ b/homeassistant/components/modbus/switch.py
@@ -22,6 +22,9 @@ async def async_setup_platform(
     """Read configuration and create Modbus switches."""
     switches = []
 
+    if discovery_info is None:  # pragma: no cover
+        return
+
     for entry in discovery_info[CONF_SWITCHES]:
         hub: ModbusHub = hass.data[MODBUS_DOMAIN][discovery_info[CONF_NAME]]
         switches.append(ModbusSwitch(hub, entry))
diff --git a/tests/components/modbus/test_cover.py b/tests/components/modbus/test_cover.py
index 8fbb45fde8e..4073e46a86e 100644
--- a/tests/components/modbus/test_cover.py
+++ b/tests/components/modbus/test_cover.py
@@ -1,5 +1,4 @@
 """The tests for the Modbus cover component."""
-import logging
 
 from pymodbus.exceptions import ModbusException
 import pytest
@@ -158,35 +157,6 @@ async def test_register_cover(hass, regs, expected):
     assert state == expected
 
 
-@pytest.mark.parametrize("read_type", [CALL_TYPE_COIL, CONF_REGISTER])
-async def test_unsupported_config_cover(hass, read_type, caplog):
-    """
-    Run test for cover.
-
-    Initialize the Cover in the legacy manner via platform.
-    This test expects that the Cover won't be initialized, and that we get a config warning.
-    """
-    device_name = "test_cover"
-    device_config = {CONF_NAME: device_name, read_type: 1234}
-
-    caplog.set_level(logging.WARNING)
-    caplog.clear()
-
-    await base_config_test(
-        hass,
-        device_config,
-        device_name,
-        COVER_DOMAIN,
-        CONF_COVERS,
-        None,
-        method_discovery=False,
-        expect_init_to_fail=True,
-    )
-
-    assert len(caplog.records) == 1
-    assert caplog.records[0].levelname == "WARNING"
-
-
 async def test_service_cover_update(hass, mock_pymodbus):
     """Run test for service homeassistant.update_entity."""