diff --git a/homeassistant/components/binary_sensor/strings.json b/homeassistant/components/binary_sensor/strings.json
index ee70420fec0..abe7efee3ed 100644
--- a/homeassistant/components/binary_sensor/strings.json
+++ b/homeassistant/components/binary_sensor/strings.json
@@ -300,19 +300,5 @@
         "on": "[%key:common::state::open%]"
       }
     }
-  },
-  "device_class": {
-    "co": "carbon monoxide",
-    "cold": "cold",
-    "gas": "gas",
-    "heat": "heat",
-    "moisture": "moisture",
-    "motion": "motion",
-    "occupancy": "occupancy",
-    "power": "power",
-    "problem": "problem",
-    "smoke": "smoke",
-    "sound": "sound",
-    "vibration": "vibration"
   }
 }
diff --git a/script/hassfest/translations.py b/script/hassfest/translations.py
index 5f233b4dec8..56609e57fd9 100644
--- a/script/hassfest/translations.py
+++ b/script/hassfest/translations.py
@@ -431,14 +431,6 @@ def validate_translation_file(  # noqa: C901
         strings_schema = gen_auth_schema(config, integration)
     elif integration.domain == "onboarding":
         strings_schema = ONBOARDING_SCHEMA
-    elif integration.domain == "binary_sensor":
-        strings_schema = gen_strings_schema(config, integration).extend(
-            {
-                vol.Optional("device_class"): cv.schema_with_slug_keys(
-                    translation_value_validator, slug_validator=vol.Any("_", cv.slug)
-                )
-            }
-        )
     elif integration.domain == "homeassistant_hardware":
         strings_schema = gen_ha_hardware_schema(config, integration)
     else: