From 7bb0414a39df8ff43c8edf58767f807167f38a39 Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Sat, 31 Jan 2026 15:14:09 +0100
Subject: [PATCH] Remove outdated device registry cleanup in statistics
 (#161865)

---
 .../components/statistics/__init__.py         | 12 +--
 tests/components/statistics/test_init.py      | 88 -------------------
 2 files changed, 1 insertion(+), 99 deletions(-)

diff --git a/homeassistant/components/statistics/__init__.py b/homeassistant/components/statistics/__init__.py
index 5c80fd1b917..2e1c2126cb4 100644
--- a/homeassistant/components/statistics/__init__.py
+++ b/homeassistant/components/statistics/__init__.py
@@ -5,10 +5,7 @@ import logging
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_ENTITY_ID, Platform
 from homeassistant.core import HomeAssistant
-from homeassistant.helpers.device import (
-    async_entity_id_to_device_id,
-    async_remove_stale_devices_links_keep_entity_device,
-)
+from homeassistant.helpers.device import async_entity_id_to_device_id
 from homeassistant.helpers.helper_integration import (
     async_handle_source_entity_changes,
     async_remove_helper_config_entry_from_source_device,
@@ -23,13 +20,6 @@ _LOGGER = logging.getLogger(__name__)
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up Statistics from a config entry."""
 
-    # This can be removed in HA Core 2026.2
-    async_remove_stale_devices_links_keep_entity_device(
-        hass,
-        entry.entry_id,
-        entry.options[CONF_ENTITY_ID],
-    )
-
     def set_source_entity_id_or_uuid(source_entity_id: str) -> None:
         hass.config_entries.async_update_entry(
             entry,
diff --git a/tests/components/statistics/test_init.py b/tests/components/statistics/test_init.py
index 2312daa8c52..7ddf400daa3 100644
--- a/tests/components/statistics/test_init.py
+++ b/tests/components/statistics/test_init.py
@@ -104,94 +104,6 @@ async def test_unload_entry(hass: HomeAssistant, loaded_entry: MockConfigEntry)
     assert loaded_entry.state is ConfigEntryState.NOT_LOADED
 
 
-async def test_device_cleaning(
-    hass: HomeAssistant,
-    device_registry: dr.DeviceRegistry,
-    entity_registry: er.EntityRegistry,
-) -> None:
-    """Test the cleaning of devices linked to the helper Statistics."""
-
-    # Source entity device config entry
-    source_config_entry = MockConfigEntry()
-    source_config_entry.add_to_hass(hass)
-
-    # Device entry of the source entity
-    source_device1_entry = device_registry.async_get_or_create(
-        config_entry_id=source_config_entry.entry_id,
-        identifiers={("sensor", "identifier_test1")},
-        connections={("mac", "30:31:32:33:34:01")},
-    )
-
-    # Source entity registry
-    source_entity = entity_registry.async_get_or_create(
-        "sensor",
-        "test",
-        "source",
-        config_entry=source_config_entry,
-        device_id=source_device1_entry.id,
-    )
-    await hass.async_block_till_done()
-    assert entity_registry.async_get("sensor.test_source") is not None
-
-    # Configure the configuration entry for Statistics
-    statistics_config_entry = MockConfigEntry(
-        data={},
-        domain=DOMAIN,
-        options={
-            "name": "Statistics",
-            "entity_id": "sensor.test_source",
-            "state_characteristic": "mean",
-            "keep_last_sample": False,
-            "percentile": 50.0,
-            "precision": 2.0,
-            "sampling_size": 20.0,
-        },
-        title="Statistics",
-    )
-    statistics_config_entry.add_to_hass(hass)
-    assert await hass.config_entries.async_setup(statistics_config_entry.entry_id)
-    await hass.async_block_till_done()
-
-    # Confirm the link between the source entity device and the statistics sensor
-    statistics_entity = entity_registry.async_get("sensor.statistics")
-    assert statistics_entity is not None
-    assert statistics_entity.device_id == source_entity.device_id
-
-    # Device entry incorrectly linked to Statistics config entry
-    device_registry.async_get_or_create(
-        config_entry_id=statistics_config_entry.entry_id,
-        identifiers={("sensor", "identifier_test2")},
-        connections={("mac", "30:31:32:33:34:02")},
-    )
-    device_registry.async_get_or_create(
-        config_entry_id=statistics_config_entry.entry_id,
-        identifiers={("sensor", "identifier_test3")},
-        connections={("mac", "30:31:32:33:34:03")},
-    )
-    await hass.async_block_till_done()
-
-    # Before reloading the config entry, two devices are expected to be linked
-    devices_before_reload = device_registry.devices.get_devices_for_config_entry_id(
-        statistics_config_entry.entry_id
-    )
-    assert len(devices_before_reload) == 2
-
-    # Config entry reload
-    await hass.config_entries.async_reload(statistics_config_entry.entry_id)
-    await hass.async_block_till_done()
-
-    # Confirm the link between the source entity device and the statistics sensor
-    statistics_entity = entity_registry.async_get("sensor.statistics")
-    assert statistics_entity is not None
-    assert statistics_entity.device_id == source_entity.device_id
-
-    # After reloading the config entry, only one linked device is expected
-    devices_after_reload = device_registry.devices.get_devices_for_config_entry_id(
-        statistics_config_entry.entry_id
-    )
-    assert len(devices_after_reload) == 0
-
-
 async def test_async_handle_source_entity_changes_source_entity_removed(
     hass: HomeAssistant,
     device_registry: dr.DeviceRegistry,