revert(litellm): remove mistral-medium-3.5 entry (GPU0 reverted to small-4 heretic)

stacks/litellm/conf/config.yaml

@@ -95,19 +95,6 @@ model_list:
     model_info:
       mode: chat
 
-  # --- Mistral Medium 3.5 (RecViking NVFP4, vLLM nightly) — TEMPORARY speed-check
-  #     tenant DISPLACING mistral-small-4 on GPU 0 (2026-06-19). Loads the HF-format
-  #     NVFP4 directly on :8012; served-name mistral-medium-3.5. NOTE: while this is
-  #     up, mistral-small-4 (above) points at a DOWN backend — revert is the
-  #     mistral-small-4-heretic stack. ---
-  - model_name: mistral-medium-3.5
-    litellm_params:
-      model: hosted_vllm/mistral-medium-3.5
-      api_base: http://10.250.50.54:8012/v1
-      api_key: os.environ/VLLM_API_KEY
-    model_info:
-      mode: chat
-
   # --- Selene 1 Mini 8B (AtlaAI judge, FP8) — restored on GPU1 after the
   #     llama-swap teardown (was the Q6_K GGUF in the swap zoo). vLLM dynamic fp8,
   #     :8011. Explicit entry shadows the "*" wildcard (which used to reach it via