diff --git a/homeassistant/components/speedtestdotnet/sensor.py b/homeassistant/components/speedtestdotnet/sensor.py
index 5bcf178f396..ccd2008503c 100644
--- a/homeassistant/components/speedtestdotnet/sensor.py
+++ b/homeassistant/components/speedtestdotnet/sensor.py
@@ -15,7 +15,6 @@ from homeassistant.const import UnitOfDataRate, UnitOfTime
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.device_registry import DeviceEntryType, DeviceInfo
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.restore_state import RestoreEntity
 from homeassistant.helpers.typing import StateType
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 
@@ -77,10 +76,7 @@ async def async_setup_entry(
     )
 
 
-# pylint: disable-next=hass-invalid-inheritance # needs fixing
-class SpeedtestSensor(
-    CoordinatorEntity[SpeedTestDataCoordinator], RestoreEntity, SensorEntity
-):
+class SpeedtestSensor(CoordinatorEntity[SpeedTestDataCoordinator], SensorEntity):
     """Implementation of a speedtest.net sensor."""
 
     entity_description: SpeedtestSensorEntityDescription
@@ -134,9 +130,3 @@ class SpeedtestSensor(
                 self._attrs[ATTR_BYTES_SENT] = self.coordinator.data[ATTR_BYTES_SENT]
 
         return self._attrs
-
-    async def async_added_to_hass(self) -> None:
-        """Handle entity which will be added."""
-        await super().async_added_to_hass()
-        if state := await self.async_get_last_state():
-            self._state = state.state
diff --git a/tests/components/speedtestdotnet/conftest.py b/tests/components/speedtestdotnet/conftest.py
index 3324b92d8bd..0dab08eddef 100644
--- a/tests/components/speedtestdotnet/conftest.py
+++ b/tests/components/speedtestdotnet/conftest.py
@@ -3,14 +3,12 @@ from unittest.mock import patch
 
 import pytest
 
-from . import MOCK_RESULTS, MOCK_SERVERS
+from . import MOCK_SERVERS
 
 
-@pytest.fixture(autouse=True)
+@pytest.fixture
 def mock_api():
     """Mock entry setup."""
     with patch("speedtest.Speedtest") as mock_api:
         mock_api.return_value.get_servers.return_value = MOCK_SERVERS
-        mock_api.return_value.get_best_server.return_value = MOCK_SERVERS[1][0]
-        mock_api.return_value.results.dict.return_value = MOCK_RESULTS
         yield mock_api
diff --git a/tests/components/speedtestdotnet/test_init.py b/tests/components/speedtestdotnet/test_init.py
index da19fd85dd3..c6804f48401 100644
--- a/tests/components/speedtestdotnet/test_init.py
+++ b/tests/components/speedtestdotnet/test_init.py
@@ -5,11 +5,7 @@ from unittest.mock import MagicMock
 
 import speedtest
 
-from homeassistant.components.speedtestdotnet.const import (
-    CONF_SERVER_ID,
-    CONF_SERVER_NAME,
-    DOMAIN,
-)
+from homeassistant.components.speedtestdotnet.const import DOMAIN
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.const import STATE_UNAVAILABLE
 from homeassistant.core import HomeAssistant
@@ -18,25 +14,6 @@ import homeassistant.util.dt as dt_util
 from tests.common import MockConfigEntry, async_fire_time_changed
 
 
-async def test_successful_config_entry(hass: HomeAssistant) -> None:
-    """Test that SpeedTestDotNet is configured successfully."""
-
-    entry = MockConfigEntry(
-        domain=DOMAIN,
-        data={},
-        options={
-            CONF_SERVER_NAME: "Country1 - Sponsor1 - Server1",
-            CONF_SERVER_ID: "1",
-        },
-    )
-    entry.add_to_hass(hass)
-
-    await hass.config_entries.async_setup(entry.entry_id)
-
-    assert entry.state == ConfigEntryState.LOADED
-    assert hass.data[DOMAIN]
-
-
 async def test_setup_failed(hass: HomeAssistant, mock_api: MagicMock) -> None:
     """Test SpeedTestDotNet failed due to an error."""
 
diff --git a/tests/components/speedtestdotnet/test_sensor.py b/tests/components/speedtestdotnet/test_sensor.py
index 887f0ba0491..d15e9fb92f4 100644
--- a/tests/components/speedtestdotnet/test_sensor.py
+++ b/tests/components/speedtestdotnet/test_sensor.py
@@ -3,11 +3,11 @@ from unittest.mock import MagicMock
 
 from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
 from homeassistant.components.speedtestdotnet import DOMAIN
-from homeassistant.core import HomeAssistant, State
+from homeassistant.core import HomeAssistant
 
 from . import MOCK_RESULTS, MOCK_SERVERS, MOCK_STATES
 
-from tests.common import MockConfigEntry, mock_restore_cache
+from tests.common import MockConfigEntry
 
 
 async def test_speedtestdotnet_sensors(
@@ -36,33 +36,3 @@ async def test_speedtestdotnet_sensors(
     sensor = hass.states.get("sensor.speedtest_ping")
     assert sensor
     assert sensor.state == MOCK_STATES["ping"]
-
-
-async def test_restore_last_state(hass: HomeAssistant, mock_api: MagicMock) -> None:
-    """Test restoring last state for sensors."""
-    mock_restore_cache(
-        hass,
-        [
-            State(f"sensor.speedtest_{sensor}", state)
-            for sensor, state in MOCK_STATES.items()
-        ],
-    )
-    entry = MockConfigEntry(domain=DOMAIN)
-    entry.add_to_hass(hass)
-
-    await hass.config_entries.async_setup(entry.entry_id)
-    await hass.async_block_till_done()
-
-    assert len(hass.states.async_entity_ids(SENSOR_DOMAIN)) == 3
-
-    sensor = hass.states.get("sensor.speedtest_ping")
-    assert sensor
-    assert sensor.state == MOCK_STATES["ping"]
-
-    sensor = hass.states.get("sensor.speedtest_download")
-    assert sensor
-    assert sensor.state == MOCK_STATES["download"]
-
-    sensor = hass.states.get("sensor.speedtest_ping")
-    assert sensor
-    assert sensor.state == MOCK_STATES["ping"]