Revert "Move Platform StrEnum to const" (#60875)

homeassistant/setup.py

@@ -14,7 +14,6 @@ from homeassistant.const import (
     EVENT_COMPONENT_LOADED,
     EVENT_HOMEASSISTANT_START,
     PLATFORM_FORMAT,
-    Platform,
 )
 from homeassistant.core import CALLBACK_TYPE
 from homeassistant.exceptions import HomeAssistantError
@@ -27,7 +26,34 @@ _LOGGER = logging.getLogger(__name__)
 
 ATTR_COMPONENT = "component"
 
-BASE_PLATFORMS = {platform.value for platform in Platform}
+BASE_PLATFORMS = {
+    "air_quality",
+    "alarm_control_panel",
+    "binary_sensor",
+    "camera",
+    "calendar",
+    "climate",
+    "cover",
+    "device_tracker",
+    "fan",
+    "humidifier",
+    "image_processing",
+    "light",
+    "lock",
+    "media_player",
+    "notify",
+    "number",
+    "remote",
+    "scene",
+    "select",
+    "sensor",
+    "siren",
+    "switch",
+    "tts",
+    "vacuum",
+    "water_heater",
+    "weather",
+}
 
 DATA_SETUP_DONE = "setup_done"
 DATA_SETUP_STARTED = "setup_started"