Remove unneeded mock from Epion (#110815)

tests/components/epion/test_config_flow.py

@@ -100,16 +100,11 @@ async def test_duplicate_entry(hass: HomeAssistant, mock_epion: MagicMock) -> No
         DOMAIN, context={"source": config_entries.SOURCE_USER}
     )
 
-    with patch(
-        "homeassistant.components.epion.async_setup_entry",
-        return_value=True,
-    ) as mock_setup_entry:
-        result = await hass.config_entries.flow.async_configure(
-            result["flow_id"],
-            {CONF_API_KEY: API_KEY},
-        )
-        await hass.async_block_till_done()
+    result = await hass.config_entries.flow.async_configure(
+        result["flow_id"],
+        {CONF_API_KEY: API_KEY},
+    )
+    await hass.async_block_till_done()
 
     assert result["type"] == FlowResultType.ABORT
     assert result["reason"] == "already_configured"
-    assert mock_setup_entry.call_count == 0