chore(apis): unpublish deprecated /v1/inference apis (#3297)

# What does this PR do?

unpublish (make unavailable to users) the following apis -
 - `/v1/inference/completion`, replaced by `/v1/openai/v1/completions`
- `/v1/inference/chat-completion`, replaced by
`/v1/openai/v1/chat/completions`
 - `/v1/inference/embeddings`, replaced by `/v1/openai/v1/embeddings`
 - `/v1/inference/batch-completion`, replaced by `/v1/openai/v1/batches`
- `/v1/inference/batch-chat-completion`, replaced by
`/v1/openai/v1/batches`

note: the implementations are still available for internal use, e.g.
agents uses chat-completion.

tests/integration/recordings/responses/d927b47032de.json

@@ -31,14 +31,14 @@
     "body": {
       "__type__": "openai.types.chat.chat_completion.ChatCompletion",
       "__data__": {
-        "id": "chatcmpl-489",
+        "id": "chatcmpl-51",
         "choices": [
           {
             "finish_reason": "stop",
             "index": 0,
             "logprobs": null,
             "message": {
-              "content": "The image is a photograph of a young golden retriever puppy from the chest up. The puppy faces the camera and its tongue is out of its mouth, as if to say hello. It appears to be between 1 and 3 months of age. It is a fluffy little golden retriever puppy with very little fat. Its fur is light blond and very fluffy. It has a small, round black nose. It is in front of a blurry background of warm yellows and greys.",
+              "content": "The image features a close-up of a golden retriever puppy with its mouth agape. The puppy has cream-color fur with golden patches on its big ears, which are held slightly out to the sides. Its dark eyes appear black from across a great distance, while the black nose is surrounded by white fur. The puppy's mouth is wide open, revealing a healthy pink tongue and what appears to be a green leaf (likely a blade of grass) stuck in its mouth. The puppy is facing the camera directly, with its paws pressed up tight against its body. The puppy is sitting in an open field with a golden brown grass carpet. The puppy appears happy. The image is well-compressed with great digital sharpness.",
               "refusal": null,
               "role": "assistant",
               "annotations": null,
@@ -48,15 +48,15 @@
             }
           }
         ],
-        "created": 1758461767,
+        "created": 1756724768,
         "model": "llama3.2-vision:11b",
         "object": "chat.completion",
         "service_tier": null,
         "system_fingerprint": "fp_ollama",
         "usage": {
-          "completion_tokens": 100,
+          "completion_tokens": 147,
           "prompt_tokens": 18,
-          "total_tokens": 118,
+          "total_tokens": 165,
           "completion_tokens_details": null,
           "prompt_tokens_details": null
         }