Clean up device class based entity translations in Elgato (#95122)

* Clean up device class based entity translations in Elgato

* Update snapshots

homeassistant/components/elgato/button.py

@@ -47,7 +47,6 @@ BUTTONS = [
     ),
     ElgatoButtonEntityDescription(
         key="restart",
-        translation_key="restart",
         device_class=ButtonDeviceClass.RESTART,
         entity_category=EntityCategory.CONFIG,
         press_fn=lambda client: client.restart(),

homeassistant/components/elgato/sensor.py

@@ -45,7 +45,6 @@ class ElgatoSensorEntityDescription(
 SENSORS = [
     ElgatoSensorEntityDescription(
         key="battery",
-        translation_key="battery",
         device_class=SensorDeviceClass.BATTERY,
         entity_category=EntityCategory.DIAGNOSTIC,
         native_unit_of_measurement=PERCENTAGE,

homeassistant/components/elgato/strings.json

@@ -26,15 +26,9 @@
     "button": {
       "identify": {
         "name": "Identify"
-      },
-      "restart": {
-        "name": "[%key:component::button::entity_component::restart::name%]"
       }
     },
     "sensor": {
-      "battery": {
-        "name": "[%key:component::sensor::entity_component::battery::name%]"
-      },
       "charge_power": {
         "name": "Charging power"
       },

tests/components/elgato/snapshots/test_button.ambr

@@ -111,7 +111,7 @@
     'original_name': 'Restart',
     'platform': 'elgato',
     'supported_features': 0,
-    'translation_key': 'restart',
+    'translation_key': None,
     'unique_id': 'GW24L1A02987_restart',
     'unit_of_measurement': None,
   })

tests/components/elgato/snapshots/test_sensor.ambr

@@ -44,7 +44,7 @@
     'original_name': 'Battery',
     'platform': 'elgato',
     'supported_features': 0,
-    'translation_key': 'battery',
+    'translation_key': None,
     'unique_id': 'GW24L1A02987_battery',
     'unit_of_measurement': '%',
   })