From 7cfcfca210340916a2e644e23a2d2d35ced52f54 Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Sat, 31 Jan 2026 15:14:57 +0100
Subject: [PATCH] Remove outdated device registry cleanup in generic_thermostat
 (#161861)

---
 .../components/generic_thermostat/__init__.py | 12 +--
 .../generic_thermostat/test_init.py           | 87 -------------------
 2 files changed, 1 insertion(+), 98 deletions(-)

diff --git a/homeassistant/components/generic_thermostat/__init__.py b/homeassistant/components/generic_thermostat/__init__.py
index 177f6695bac..6927b9fe26e 100644
--- a/homeassistant/components/generic_thermostat/__init__.py
+++ b/homeassistant/components/generic_thermostat/__init__.py
@@ -5,10 +5,7 @@ import logging
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.core import Event, HomeAssistant
 from homeassistant.helpers import entity_registry as er
-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.event import async_track_entity_registry_updated_event
 from homeassistant.helpers.helper_integration import (
     async_handle_source_entity_changes,
@@ -23,13 +20,6 @@ _LOGGER = logging.getLogger(__name__)
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up 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_HEATER],
-    )
-
     def set_humidifier_entity_id_or_uuid(source_entity_id: str) -> None:
         hass.config_entries.async_update_entry(
             entry,
diff --git a/tests/components/generic_thermostat/test_init.py b/tests/components/generic_thermostat/test_init.py
index ceca7ecc444..0d0c95b459d 100644
--- a/tests/components/generic_thermostat/test_init.py
+++ b/tests/components/generic_thermostat/test_init.py
@@ -140,93 +140,6 @@ def track_entity_registry_actions(hass: HomeAssistant, entity_id: str) -> list[s
     return events
 
 
-async def test_device_cleaning(
-    hass: HomeAssistant,
-    device_registry: dr.DeviceRegistry,
-    entity_registry: er.EntityRegistry,
-) -> None:
-    """Test cleaning of devices linked to the helper config entry."""
-
-    # 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={("switch", "identifier_test1")},
-        connections={("mac", "30:31:32:33:34:01")},
-    )
-
-    # Source entity registry
-    source_entity = entity_registry.async_get_or_create(
-        "switch",
-        "test",
-        "source",
-        config_entry=source_config_entry,
-        device_id=source_device1_entry.id,
-    )
-    await hass.async_block_till_done()
-    assert entity_registry.async_get("switch.test_source") is not None
-
-    # Configure the configuration entry for helper
-    helper_config_entry = MockConfigEntry(
-        data={},
-        domain=DOMAIN,
-        options={
-            "name": "Test",
-            "heater": "switch.test_source",
-            "target_sensor": "sensor.temperature",
-            "ac_mode": False,
-            "cold_tolerance": 0.3,
-            "hot_tolerance": 0.3,
-        },
-        title="Test",
-    )
-    helper_config_entry.add_to_hass(hass)
-    assert await hass.config_entries.async_setup(helper_config_entry.entry_id)
-    await hass.async_block_till_done()
-
-    # Confirm the link between the source entity device and the helper entity
-    helper_entity = entity_registry.async_get("climate.test")
-    assert helper_entity is not None
-    assert helper_entity.device_id == source_entity.device_id
-
-    # Device entry incorrectly linked to config entry
-    device_registry.async_get_or_create(
-        config_entry_id=helper_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=helper_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, 3 devices are expected to be linked
-    devices_before_reload = device_registry.devices.get_devices_for_config_entry_id(
-        helper_config_entry.entry_id
-    )
-    assert len(devices_before_reload) == 2
-
-    # Config entry reload
-    await hass.config_entries.async_reload(helper_config_entry.entry_id)
-    await hass.async_block_till_done()
-
-    # Confirm the link between the source entity device and the helper entity
-    helper_entity = entity_registry.async_get("climate.test")
-    assert helper_entity is not None
-    assert helper_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(
-        helper_config_entry.entry_id
-    )
-    assert len(devices_after_reload) == 0
-
-
 @pytest.mark.usefixtures(
     "sensor_config_entry",
     "sensor_device",