Karstein Dryfy Pro: remove redundant mapping

custom_components/tuya_local/devices/klarstein_dryfy_pro_connect_dehumidifier.yaml

@@ -117,11 +117,6 @@ secondary_entities:
         name: switch 
         type: boolean
         optional: true
-        mapping:
-          - dps_val: false
-            value: false
-          - dps_val: true
-            value: true  
   - entity: switch
     name: "Humidity indicator"
     category: config