Revert "Avoid pre-importing config_flows if the integration does not … (#113553)

Revert "Avoid pre-importing config_flows if the integration does not support …"

This reverts commit 9940f51b95.

tests/test_loader.py

@@ -1204,21 +1204,31 @@ async def test_async_get_component_loads_loop_if_already_in_sys_modules(
     assert "test_package_loaded_executor" not in hass.config.components
     assert "test_package_loaded_executor.config_flow" not in hass.config.components
 
-    module_mock = object()
+    config_flow_module_name = f"{integration.pkg_path}.config_flow"
+    module_mock = MagicMock(__file__="__init__.py")
+    config_flow_module_mock = MagicMock(__file__="config_flow.py")
 
     def import_module(name: str) -> Any:
         if name == integration.pkg_path:
             return module_mock
+        if name == config_flow_module_name:
+            return config_flow_module_mock
         raise ImportError
 
+    modules_without_config_flow = {
+        k: v for k, v in sys.modules.items() if k != config_flow_module_name
+    }
     with patch.dict(
         "sys.modules",
-        {**sys.modules, integration.pkg_path: module_mock},
+        {**modules_without_config_flow, integration.pkg_path: module_mock},
         clear=True,
     ), patch("homeassistant.loader.importlib.import_module", import_module):
         module = await integration.async_get_component()
 
-    assert "loaded_executor=False" in caplog.text
+    # The config flow is missing so we should load
+    # in the executor
+    assert "loaded_executor=True" in caplog.text
+    assert "loaded_executor=False" not in caplog.text
     assert module is module_mock
     caplog.clear()
 
@@ -1226,6 +1236,7 @@ async def test_async_get_component_loads_loop_if_already_in_sys_modules(
         "sys.modules",
         {
             integration.pkg_path: module_mock,
+            config_flow_module_name: config_flow_module_mock,
         },
     ), patch("homeassistant.loader.importlib.import_module", import_module):
         module = await integration.async_get_component()
@@ -1235,10 +1246,6 @@ async def test_async_get_component_loads_loop_if_already_in_sys_modules(
     assert "loaded_executor" not in caplog.text
     assert module is module_mock
 
-    # The integration does not implement async_migrate_entry so it
-    # should not be preloaded
-    assert integration.get_platform_cached("config_flow") is None
-
 
 async def test_async_get_component_concurrent_loads(
     hass: HomeAssistant,