Remove duplicate 'SenseHat' entry from JSON

duplicated sensehat

Author: albertoabellagarcia

specs/AllSubjects/official_list_data_models.json

@@ -244,7 +244,6 @@
         "PolarH10",
         "PrivacyObject",
         "SenseHat",
-        "SenseHat",
         "SmartMeteringObservation",
         "UWBAnchor"
       ],