Update dataset_dict.json

dataset_dict.json

@@ -2,16 +2,13 @@
   "train": {
     "num_examples": 30400,
     "num_bytes": 17722353,
-    "description": "The training set contains 30,400 examples of TripAdvisor reviews with corresponding sentiment labels (1 to 5)."
   },
   "validation": {
     "num_examples": 1600,
     "num_bytes": 971635,
-    "description": "The validation set contains 1,600 examples used for model tuning."
   },
   "test": {
     "num_examples": 8000,
     "num_bytes": 4690503,
-    "description": "The test set contains 8,000 examples for final model evaluation."
   }
 }