Update smart_water_heater.yaml

remove config about missing sensor

custom_components/tuya_local/devices/smart_water_heater.yaml

@@ -240,20 +240,6 @@ secondary_entities:
             value: C
           - dps_val: true
             value: F
-  - entity: select
-    name: Temperature sensor
-    category: config
-    dps:
-      - id: 116
-        type: string
-        name: option
-        mapping:
-          - dps_val: in
-            value: Internal
-          - dps_val: ext
-            value: External
-          - dps_val: all
-            value: Both
   - entity: select
     name: Initial state
     category: config