diff --git a/homeassistant/components/filesize/__init__.py b/homeassistant/components/filesize/__init__.py
index 8f5b098d221..b3292ed9c9f 100644
--- a/homeassistant/components/filesize/__init__.py
+++ b/homeassistant/components/filesize/__init__.py
@@ -1,7 +1,6 @@
 """The filesize component."""
 from __future__ import annotations
 
-import logging
 import pathlib
 
 from homeassistant.config_entries import ConfigEntry
@@ -11,8 +10,6 @@ from homeassistant.exceptions import ConfigEntryNotReady
 
 from .const import PLATFORMS
 
-_LOGGER = logging.getLogger(__name__)
-
 
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up from a config entry."""
diff --git a/homeassistant/components/filesize/config_flow.py b/homeassistant/components/filesize/config_flow.py
index 7838353fa12..ed2d4ab0940 100644
--- a/homeassistant/components/filesize/config_flow.py
+++ b/homeassistant/components/filesize/config_flow.py
@@ -67,10 +67,6 @@ class FilesizeConfigFlow(ConfigFlow, domain=DOMAIN):
             step_id="user", data_schema=DATA_SCHEMA, errors=errors
         )
 
-    async def async_step_import(self, user_input: dict[str, Any]) -> FlowResult:
-        """Handle import from configuration.yaml."""
-        return await self.async_step_user(user_input)
-
 
 class NotValidError(Exception):
     """Path is not valid error."""
diff --git a/homeassistant/components/filesize/const.py b/homeassistant/components/filesize/const.py
index a47f1f99d38..a3180f762c0 100644
--- a/homeassistant/components/filesize/const.py
+++ b/homeassistant/components/filesize/const.py
@@ -4,5 +4,3 @@ from homeassistant.const import Platform
 
 DOMAIN = "filesize"
 PLATFORMS = [Platform.SENSOR]
-
-CONF_FILE_PATHS = "file_paths"
diff --git a/homeassistant/components/filesize/sensor.py b/homeassistant/components/filesize/sensor.py
index 22b8cd60d79..70896bcacad 100644
--- a/homeassistant/components/filesize/sensor.py
+++ b/homeassistant/components/filesize/sensor.py
@@ -6,23 +6,18 @@ import logging
 import os
 import pathlib
 
-import voluptuous as vol
-
 from homeassistant.components.sensor import (
-    PLATFORM_SCHEMA as PARENT_PLATFORM_SCHEMA,
     SensorDeviceClass,
     SensorEntity,
     SensorEntityDescription,
     SensorStateClass,
 )
-from homeassistant.config_entries import SOURCE_IMPORT, ConfigEntry
+from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_FILE_PATH, DATA_BYTES, DATA_MEGABYTES
 from homeassistant.core import HomeAssistant
-import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.device_registry import DeviceEntryType
 from homeassistant.helpers.entity import DeviceInfo, EntityCategory
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
-from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType
 from homeassistant.helpers.update_coordinator import (
     CoordinatorEntity,
     DataUpdateCoordinator,
@@ -30,7 +25,7 @@ from homeassistant.helpers.update_coordinator import (
 )
 import homeassistant.util.dt as dt_util
 
-from .const import CONF_FILE_PATHS, DOMAIN
+from .const import DOMAIN
 
 _LOGGER = logging.getLogger(__name__)
 
@@ -64,34 +59,6 @@ SENSOR_TYPES = (
     ),
 )
 
-PLATFORM_SCHEMA = PARENT_PLATFORM_SCHEMA.extend(
-    {vol.Required(CONF_FILE_PATHS): vol.All(cv.ensure_list, [cv.isfile])}
-)
-
-
-async def async_setup_platform(
-    hass: HomeAssistant,
-    config: ConfigType,
-    async_add_entities: AddEntitiesCallback,
-    discovery_info: DiscoveryInfoType | None = None,
-) -> None:
-    """Set up the file size sensor."""
-    _LOGGER.warning(
-        # Filesize config flow added in 2022.4 and should be removed in 2022.6
-        "Configuration of the Filesize sensor platform in YAML is deprecated and "
-        "will be removed in Home Assistant 2022.6; Your existing configuration "
-        "has been imported into the UI automatically and can be safely removed "
-        "from your configuration.yaml file"
-    )
-    for path in config[CONF_FILE_PATHS]:
-        hass.async_create_task(
-            hass.config_entries.flow.async_init(
-                DOMAIN,
-                context={"source": SOURCE_IMPORT},
-                data={CONF_FILE_PATH: path},
-            )
-        )
-
 
 async def async_setup_entry(
     hass: HomeAssistant,
diff --git a/tests/components/filesize/test_config_flow.py b/tests/components/filesize/test_config_flow.py
index 0209444ec42..f6873e64128 100644
--- a/tests/components/filesize/test_config_flow.py
+++ b/tests/components/filesize/test_config_flow.py
@@ -1,10 +1,8 @@
 """Tests for the Filesize config flow."""
 from unittest.mock import patch
 
-import pytest
-
 from homeassistant.components.filesize.const import DOMAIN
-from homeassistant.config_entries import SOURCE_IMPORT, SOURCE_USER
+from homeassistant.config_entries import SOURCE_USER
 from homeassistant.const import CONF_FILE_PATH
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import (
@@ -40,39 +38,22 @@ async def test_full_user_flow(hass: HomeAssistant) -> None:
     assert result2.get("data") == {CONF_FILE_PATH: TEST_FILE}
 
 
-@pytest.mark.parametrize("source", [SOURCE_USER, SOURCE_IMPORT])
 async def test_unique_path(
     hass: HomeAssistant,
     mock_config_entry: MockConfigEntry,
-    source: str,
 ) -> None:
     """Test we abort if already setup."""
     hass.config.allowlist_external_dirs = {TEST_DIR}
     mock_config_entry.add_to_hass(hass)
 
     result = await hass.config_entries.flow.async_init(
-        DOMAIN, context={"source": source}, data={CONF_FILE_PATH: TEST_FILE}
+        DOMAIN, context={"source": SOURCE_USER}, data={CONF_FILE_PATH: TEST_FILE}
     )
 
     assert result.get("type") == RESULT_TYPE_ABORT
     assert result.get("reason") == "already_configured"
 
 
-async def test_import_flow(hass: HomeAssistant) -> None:
-    """Test the import configuration flow."""
-    create_file(TEST_FILE)
-    hass.config.allowlist_external_dirs = {TEST_DIR}
-    result = await hass.config_entries.flow.async_init(
-        DOMAIN,
-        context={"source": SOURCE_IMPORT},
-        data={CONF_FILE_PATH: TEST_FILE},
-    )
-
-    assert result.get("type") == RESULT_TYPE_CREATE_ENTRY
-    assert result.get("title") == TEST_FILE_NAME
-    assert result.get("data") == {CONF_FILE_PATH: TEST_FILE}
-
-
 async def test_flow_fails_on_validation(hass: HomeAssistant) -> None:
     """Test config flow errors."""
     create_file(TEST_FILE)
diff --git a/tests/components/filesize/test_init.py b/tests/components/filesize/test_init.py
index fecd3033c91..99285e56b6f 100644
--- a/tests/components/filesize/test_init.py
+++ b/tests/components/filesize/test_init.py
@@ -1,21 +1,10 @@
 """Tests for the Filesize integration."""
-from unittest.mock import AsyncMock
-
-from homeassistant.components.filesize.const import CONF_FILE_PATHS, DOMAIN
-from homeassistant.components.sensor import DOMAIN as SENSOR_DOMAIN
+from homeassistant.components.filesize.const import DOMAIN
 from homeassistant.config_entries import ConfigEntryState
 from homeassistant.const import CONF_FILE_PATH
 from homeassistant.core import HomeAssistant
-from homeassistant.setup import async_setup_component
 
-from . import (
-    TEST_DIR,
-    TEST_FILE,
-    TEST_FILE2,
-    TEST_FILE_NAME,
-    TEST_FILE_NAME2,
-    create_file,
-)
+from . import create_file
 
 from tests.common import MockConfigEntry
 
@@ -75,36 +64,3 @@ async def test_not_valid_path_to_file(
     await hass.async_block_till_done()
 
     assert mock_config_entry.state is ConfigEntryState.SETUP_RETRY
-
-
-async def test_import_config(
-    hass: HomeAssistant,
-    mock_setup_entry: AsyncMock,
-) -> None:
-    """Test Filesize being set up from config via import."""
-    create_file(TEST_FILE)
-    create_file(TEST_FILE2)
-    hass.config.allowlist_external_dirs = {TEST_DIR}
-    assert await async_setup_component(
-        hass,
-        SENSOR_DOMAIN,
-        {
-            SENSOR_DOMAIN: {
-                "platform": DOMAIN,
-                CONF_FILE_PATHS: [TEST_FILE, TEST_FILE2],
-            }
-        },
-    )
-    await hass.async_block_till_done()
-
-    config_entries = hass.config_entries.async_entries(DOMAIN)
-    assert len(config_entries) == 2
-
-    entry = config_entries[0]
-    assert entry.title == TEST_FILE_NAME
-    assert entry.unique_id == TEST_FILE
-    assert entry.data == {CONF_FILE_PATH: TEST_FILE}
-    entry2 = config_entries[1]
-    assert entry2.title == TEST_FILE_NAME2
-    assert entry2.unique_id == TEST_FILE2
-    assert entry2.data == {CONF_FILE_PATH: TEST_FILE2}
diff --git a/tests/components/filesize/test_sensor.py b/tests/components/filesize/test_sensor.py
index 6f21119f95f..803aa96610d 100644
--- a/tests/components/filesize/test_sensor.py
+++ b/tests/components/filesize/test_sensor.py
@@ -1,11 +1,9 @@
 """The tests for the filesize sensor."""
 import os
 
-from homeassistant.components.filesize.const import DOMAIN
 from homeassistant.const import CONF_FILE_PATH, STATE_UNAVAILABLE
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_component import async_update_entity
-from homeassistant.setup import async_setup_component
 
 from . import TEST_FILE, TEST_FILE_NAME, create_file
 
@@ -71,23 +69,3 @@ async def test_state_unavailable(
 
     state = hass.states.get("sensor.file_txt_size")
     assert state.state == STATE_UNAVAILABLE
-
-
-async def test_import_query(hass: HomeAssistant, tmpdir: str) -> None:
-    """Test import from yaml."""
-    testfile = f"{tmpdir}/file.txt"
-    create_file(testfile)
-    hass.config.allowlist_external_dirs = {tmpdir}
-    config = {
-        "sensor": {
-            "platform": "filesize",
-            "file_paths": [testfile],
-        }
-    }
-
-    assert await async_setup_component(hass, "sensor", config)
-    await hass.async_block_till_done()
-
-    assert hass.config_entries.async_entries(DOMAIN)
-    data = hass.config_entries.async_entries(DOMAIN)[0].data
-    assert data[CONF_FILE_PATH] == testfile