Update kogan_air_purifier_5_pro.yaml

Fixed unit in wrong place

custom_components/tuya_local/devices/kogan_air_purifier_5_pro.yaml

@@ -102,7 +102,6 @@ entities:
   - name: Timer remaining
     entity: sensor
     class: duration
-    unit: s
     icon: "mdi:clock-outline"
     dps:
       - id: 20