Update config.json

config.json

@@ -31,10 +31,6 @@
     "kv_cache_dtype": {
       "q4f16": "float16",
       "fp16": "float16"
-    },
-    "use_external_data_format": {
-      "q4": true,
-      "q4f16": true
     }
   }
 }