fix(gallery): drop qwen-image-2.1 chat entry

The entry installs the Qwen-Image 2.1 diffusion weights under the
llama-cpp backend as a chat model. llama.cpp cannot load these weights.
Image generation is already served by the qwen-image-2.1-q4_k-ggml and
qwen-image-2.1-q8_0-ggml entries, which use stablediffusion-ggml.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

gallery/index.yaml

@@ -161,49 +161,6 @@
     - filename: llama-cpp/mmproj/Simplicio-27B/Simplicio-27B.mmproj-f16.gguf
       sha256: 748cc53ee11b19221eb0cbb6c7fcb484199bc35eead8ed942280a81ae3840426
       uri: https://huggingface.co/mradermacher/Simplicio-27B-GGUF/resolve/e4269a7c2c770a15ef32a042bc0861642817f7ea/Simplicio-27B.mmproj-f16.gguf
-- name: "qwen-image-2.1"
-  url: "github:mudler/LocalAI/gallery/virtual.yaml@master"
-  urls:
-    - https://huggingface.co/unsloth/Qwen-Image-2.1-GGUF
-  description: |
-    🤖 ModelScope  |
-      🤗 HuggingFace  |
-      📑 Blog  |
-      🖥️ Demo  |
-      🫨 Discord  |
-      💬 WeChat
-
-    ## Introduction
-
-    We are excited to open-source **Qwen-Image-2.1**, a unified text-to-image generation and image editing model in the Qwen family. With just **7B parameters in its visual generation component** (32 Single-Stream DiT layers), Qwen-Image-2.1 balances generation quality, inference efficiency, and versatility.
-
-    Four key improvements define this release:
-
-    ...
-  license: "other"
-  tags:
-    - llm
-    - gguf
-    - qwen
-  icon: https://qianwen-res.oss-cn-beijing.aliyuncs.com/Qwen-Image/image2.1/logo.png
-  overrides:
-    backend: llama-cpp
-    function:
-      automatic_tool_parsing_fallback: true
-      grammar:
-        disable: true
-    known_usecases:
-      - chat
-    options:
-      - use_jinja:true
-    parameters:
-      model: llama-cpp/models/qwen-image-2.1-Q4_K_M/qwen-image-2.1-Q4_K_M.gguf
-    template:
-      use_tokenizer_template: true
-  files:
-    - filename: llama-cpp/models/qwen-image-2.1-Q4_K_M/qwen-image-2.1-Q4_K_M.gguf
-      sha256: 631d532e7ca71e8d90a87c71d3699761a812039d22e3370e87498d87754660fe
-      uri: https://huggingface.co/unsloth/Qwen-Image-2.1-GGUF/resolve/main/qwen-image-2.1-Q4_K_M.gguf
 - name: spark-s1-4b-v6
   url: github:mudler/LocalAI/gallery/virtual.yaml@master
   urls: