diff --git a/homeassistant/components/landisgyr_heat_meter/const.py b/homeassistant/components/landisgyr_heat_meter/const.py
index 56f5980a839..079bcad2534 100644
--- a/homeassistant/components/landisgyr_heat_meter/const.py
+++ b/homeassistant/components/landisgyr_heat_meter/const.py
@@ -4,6 +4,5 @@ from datetime import timedelta
 
 DOMAIN = "landisgyr_heat_meter"
 
-GJ_TO_MWH = 0.277778  # conversion factor
 ULTRAHEAT_TIMEOUT = 30  # reading the IR port can take some time
 POLLING_INTERVAL = timedelta(days=1)  # Polling is only daily to prevent battery drain.
diff --git a/homeassistant/components/landisgyr_heat_meter/manifest.json b/homeassistant/components/landisgyr_heat_meter/manifest.json
index 5e10f394186..a056f1f6564 100644
--- a/homeassistant/components/landisgyr_heat_meter/manifest.json
+++ b/homeassistant/components/landisgyr_heat_meter/manifest.json
@@ -5,9 +5,6 @@
   "config_flow": true,
   "dependencies": ["usb"],
   "documentation": "https://www.home-assistant.io/integrations/landisgyr_heat_meter",
-  "homekit": {},
   "iot_class": "local_polling",
-  "requirements": ["ultraheat-api==0.5.1"],
-  "ssdp": [],
-  "zeroconf": []
+  "requirements": ["ultraheat-api==0.5.1"]
 }