Spa Electrics Iris: remove empty units

custom_components/tuya_local/devices/spaelectrics_light_controller.yaml

@@ -362,7 +362,6 @@ secondary_entities:
       - id: 137
         type: integer
         name: value
-        unit: 
         range:
           min: 1
           max: 3
@@ -508,7 +507,6 @@ secondary_entities:
       - id: 146
         type: integer
         name: value
-        unit: 
         range:
           min: 1
           max: 3
@@ -606,4 +604,3 @@ secondary_entities:
         type: boolean
         optional: true
         name: button
-