Remove chat template from UI options

This is probably unwise to have in UI options from a security standpoint due to the use of Jinja templating in the CAPI addon provider.

Author: sd109

chart/azimuth-ui.schema.yaml

@@ -5,8 +5,6 @@ controls:
   /huggingface/token:
     type: TextControl
     secret: true
-  /huggingface/chatTemplate:
-    type: TextControl
   /ui/appSettings/hf_model_instruction:
     type: TextControl
   /ui/appSettings/page_title:

chart/values.schema.json

@@ -11,11 +11,6 @@
                     "description": "The [HuggingFace model](https://huggingface.co/models) to deploy (see [here](https://github.com/stackhpc/azimuth-llm?tab=readme-ov-file#tested-models) for a list of tested models).",
                     "default": "mistralai/Mistral-7B-Instruct-v0.2"
                 },
-                "chatTemplate": {
-                    "type": ["string", "null"],
-                    "title": "Chat Template",
-                    "description": "An optional chat template override for the model (see [here](https://huggingface.co/blog/chat-templates) for more information)."
-                },
                 "token": {
                     "type": ["string", "null"],
                     "title": "Access Token",