Add chat_template.jinja; drop inline chat_template

chat_template.jinja

@@ -0,0 +1 @@
+{% for message in messages %}<|start_header_id|>{{ message['role'] }}<|end_header_id|>{{ '\n\n' }}{{ message['content'] }}<|eot_id|>{% endfor %}{% if add_generation_prompt %}<|start_header_id|>assistant<|end_header_id|>{{ '\n\n' }}{% endif %}

tokenizer_config.json

@@ -15,6 +15,5 @@
   "mask_token_id": 100280,
   "start_header_id": 100281,
   "end_header_id": 100282,
-  "eot_id": 100283,
-  "chat_template": "{% for message in messages %}<|start_header_id|>{{ message['role'] }}<|end_header_id|>\n\n{{ message['content'] }}<|endofchunk|><|eot_id|>{% endfor %}{% if add_generation_prompt %}<|start_header_id|>assistant<|end_header_id|>\n\n{% endif %}"
+  "eot_id": 100283
 }