diff --git a/homeassistant/components/config/__init__.py b/homeassistant/components/config/__init__.py
index 96dbd79da1e0b5d480a60a9a478cebc3d42427f9..ff7b1e4d4cd7ebfe53318aebd494fde36cb3152c 100644
--- a/homeassistant/components/config/__init__.py
+++ b/homeassistant/components/config/__init__.py
@@ -22,7 +22,6 @@ SECTIONS = (
"automation",
"config_entries",
"core",
- "customize",
"device_registry",
"entity_registry",
"group",
diff --git a/homeassistant/components/config/customize.py b/homeassistant/components/config/customize.py
deleted file mode 100644
index 3b1122fc3a57bd3a1b82563624aea66427832cac..0000000000000000000000000000000000000000
--- a/homeassistant/components/config/customize.py
+++ /dev/null
@@ -1,43 +0,0 @@
-"""Provide configuration end points for Customize."""
-from homeassistant.components.homeassistant import SERVICE_RELOAD_CORE_CONFIG
-from homeassistant.config import DATA_CUSTOMIZE
-from homeassistant.core import DOMAIN
-import homeassistant.helpers.config_validation as cv
-
-from . import EditKeyBasedConfigView
-
-CONFIG_PATH = "customize.yaml"
-
-
-async def async_setup(hass):
- """Set up the Customize config API."""
-
- async def hook(action, config_key):
- """post_write_hook for Config View that reloads groups."""
- await hass.services.async_call(DOMAIN, SERVICE_RELOAD_CORE_CONFIG)
-
- hass.http.register_view(
- CustomizeConfigView(
- "customize", "config", CONFIG_PATH, cv.entity_id, dict, post_write_hook=hook
- )
- )
-
- return True
-
-
-class CustomizeConfigView(EditKeyBasedConfigView):
- """Configure a list of entries."""
-
- def _get_value(self, hass, data, config_key):
- """Get value."""
- customize = hass.data.get(DATA_CUSTOMIZE, {}).get(config_key) or {}
- return {"global": customize, "local": data.get(config_key, {})}
-
- def _write_value(self, hass, data, config_key, new_value):
- """Set value."""
- data[config_key] = new_value
-
- state = hass.states.get(config_key)
- state_attributes = dict(state.attributes)
- state_attributes.update(new_value)
- hass.states.async_set(config_key, state.state, state_attributes)
diff --git a/tests/components/config/test_customize.py b/tests/components/config/test_customize.py
deleted file mode 100644
index 9ea18ff2ae00be77540cceb39f533d907698c398..0000000000000000000000000000000000000000
--- a/tests/components/config/test_customize.py
+++ /dev/null
@@ -1,118 +0,0 @@
-"""Test Customize config panel."""
-from http import HTTPStatus
-import json
-from unittest.mock import patch
-
-import pytest
-
-from homeassistant.bootstrap import async_setup_component
-from homeassistant.components import config
-from homeassistant.config import DATA_CUSTOMIZE
-
-
-@pytest.fixture(autouse=True)
-async def setup_homeassistant(hass):
- """Set up homeassistant integration."""
- assert await async_setup_component(hass, "homeassistant", {})
-
-
-async def test_get_entity(hass, hass_client):
- """Test getting entity."""
- with patch.object(config, "SECTIONS", ["customize"]):
- await async_setup_component(hass, "config", {})
-
- client = await hass_client()
-
- def mock_read(path):
- """Mock reading data."""
- return {"hello.beer": {"free": "beer"}, "other.entity": {"do": "something"}}
-
- hass.data[DATA_CUSTOMIZE] = {"hello.beer": {"cold": "beer"}}
- with patch("homeassistant.components.config._read", mock_read):
- resp = await client.get("/api/config/customize/config/hello.beer")
-
- assert resp.status == HTTPStatus.OK
- result = await resp.json()
-
- assert result == {"local": {"free": "beer"}, "global": {"cold": "beer"}}
-
-
-async def test_update_entity(hass, hass_client):
- """Test updating entity."""
- with patch.object(config, "SECTIONS", ["customize"]):
- await async_setup_component(hass, "config", {})
-
- client = await hass_client()
-
- orig_data = {
- "hello.beer": {"ignored": True},
- "other.entity": {"polling_intensity": 2},
- }
-
- def mock_read(path):
- """Mock reading data."""
- return orig_data
-
- written = []
-
- def mock_write(path, data):
- """Mock writing data."""
- written.append(data)
-
- hass.states.async_set("hello.world", "state", {"a": "b"})
- with patch("homeassistant.components.config._read", mock_read), patch(
- "homeassistant.components.config._write", mock_write
- ), patch(
- "homeassistant.config.async_hass_config_yaml",
- return_value={},
- ):
- resp = await client.post(
- "/api/config/customize/config/hello.world",
- data=json.dumps(
- {"name": "Beer", "entities": ["light.top", "light.bottom"]}
- ),
- )
- await hass.async_block_till_done()
-
- assert resp.status == HTTPStatus.OK
- result = await resp.json()
- assert result == {"result": "ok"}
-
- state = hass.states.get("hello.world")
- assert state.state == "state"
- assert dict(state.attributes) == {
- "a": "b",
- "name": "Beer",
- "entities": ["light.top", "light.bottom"],
- }
-
- orig_data["hello.world"]["name"] = "Beer"
- orig_data["hello.world"]["entities"] = ["light.top", "light.bottom"]
-
- assert written[0] == orig_data
-
-
-async def test_update_entity_invalid_key(hass, hass_client):
- """Test updating entity."""
- with patch.object(config, "SECTIONS", ["customize"]):
- await async_setup_component(hass, "config", {})
-
- client = await hass_client()
-
- resp = await client.post(
- "/api/config/customize/config/not_entity", data=json.dumps({"name": "YO"})
- )
-
- assert resp.status == HTTPStatus.BAD_REQUEST
-
-
-async def test_update_entity_invalid_json(hass, hass_client):
- """Test updating entity."""
- with patch.object(config, "SECTIONS", ["customize"]):
- await async_setup_component(hass, "config", {})
-
- client = await hass_client()
-
- resp = await client.post("/api/config/customize/config/hello.beer", data="not json")
-
- assert resp.status == HTTPStatus.BAD_REQUEST