diff --git a/tests/components/google_assistant/test_http.py b/tests/components/google_assistant/test_http.py
index 112935f0160..f5e3e505a28 100644
--- a/tests/components/google_assistant/test_http.py
+++ b/tests/components/google_assistant/test_http.py
@@ -145,38 +145,6 @@ async def test_call_homegraph_api_retry(hass, aioclient_mock, hass_storage):
         assert call[3] == MOCK_HEADER
 
 
-async def test_call_homegraph_api_key(hass, aioclient_mock, hass_storage):
-    """Test the function to call the homegraph api."""
-    config = GoogleConfig(
-        hass, GOOGLE_ASSISTANT_SCHEMA({"project_id": "1234", "api_key": "dummy_key"}),
-    )
-    await config.async_initialize()
-
-    aioclient_mock.post(MOCK_URL, status=200, json={})
-
-    res = await config.async_call_homegraph_api_key(MOCK_URL, MOCK_JSON)
-    assert res == 200
-    assert aioclient_mock.call_count == 1
-
-    call = aioclient_mock.mock_calls[0]
-    assert call[1].query == {"key": "dummy_key"}
-    assert call[2] == MOCK_JSON
-
-
-async def test_call_homegraph_api_key_fail(hass, aioclient_mock, hass_storage):
-    """Test the function to call the homegraph api."""
-    config = GoogleConfig(
-        hass, GOOGLE_ASSISTANT_SCHEMA({"project_id": "1234", "api_key": "dummy_key"}),
-    )
-    await config.async_initialize()
-
-    aioclient_mock.post(MOCK_URL, status=666, json={})
-
-    res = await config.async_call_homegraph_api_key(MOCK_URL, MOCK_JSON)
-    assert res == 666
-    assert aioclient_mock.call_count == 1
-
-
 async def test_report_state(hass, aioclient_mock, hass_storage):
     """Test the report state function."""
     agent_user_id = "user"