diff --git a/homeassistant/helpers/restore_state.py b/homeassistant/helpers/restore_state.py
index a2b4b3a9b9a..fd1f84a85ff 100644
--- a/homeassistant/helpers/restore_state.py
+++ b/homeassistant/helpers/restore_state.py
@@ -17,7 +17,6 @@ from homeassistant.util.json import json_loads
 from . import start
 from .entity import Entity
 from .event import async_track_time_interval
-from .frame import report
 from .json import JSONEncoder
 from .singleton import singleton
 from .storage import Store
@@ -116,21 +115,6 @@ class RestoreStateData:
         """Dump states now."""
         await async_get(hass).async_dump_states()
 
-    @classmethod
-    async def async_get_instance(cls, hass: HomeAssistant) -> RestoreStateData:
-        """Return the instance of this class."""
-        # Nothing should actually be calling this anymore, but we'll keep it
-        # around for a while to avoid breaking custom components.
-        #
-        # In fact they should not be accessing this at all.
-        report(
-            "restore_state.RestoreStateData.async_get_instance is deprecated, "
-            "and not intended to be called by custom components; Please"
-            "refactor your code to use RestoreEntity instead;"
-            " restore_state.async_get(hass) can be used in the meantime",
-        )
-        return async_get(hass)
-
     def __init__(self, hass: HomeAssistant) -> None:
         """Initialize the restore state data class."""
         self.hass: HomeAssistant = hass
diff --git a/tests/helpers/test_restore_state.py b/tests/helpers/test_restore_state.py
index 865ee5efaf7..7adb3dd5b5e 100644
--- a/tests/helpers/test_restore_state.py
+++ b/tests/helpers/test_restore_state.py
@@ -6,8 +6,6 @@ import logging
 from typing import Any
 from unittest.mock import Mock, patch
 
-import pytest
-
 from homeassistant.const import EVENT_HOMEASSISTANT_START, EVENT_HOMEASSISTANT_STOP
 from homeassistant.core import CoreState, HomeAssistant, State
 from homeassistant.exceptions import HomeAssistantError
@@ -94,20 +92,6 @@ async def test_caching_data(hass: HomeAssistant) -> None:
     assert mock_write_data.called
 
 
-async def test_async_get_instance_backwards_compatibility(hass: HomeAssistant) -> None:
-    """Test async_get_instance backwards compatibility."""
-    await async_load(hass)
-    data = async_get(hass)
-    # When called from core it should raise
-    with pytest.raises(RuntimeError):
-        await RestoreStateData.async_get_instance(hass)
-
-    # When called from a component it should not raise
-    # but it should report
-    with patch("homeassistant.helpers.restore_state.report"):
-        assert data is await RestoreStateData.async_get_instance(hass)
-
-
 async def test_periodic_write(hass: HomeAssistant) -> None:
     """Test that we write periodiclly but not after stop."""
     data = async_get(hass)