Update generation_config.json

generation_config.json

@@ -9,6 +9,5 @@
   "temperature": 0.6,
   "top_k": 20,
   "top_p": 0.95,
-  "transformers_version": "4.55.0",
-  "presence_penalty": 1.5
+  "transformers_version": "4.55.0"
 }