Fix tool call4 (#3094)

* Removing the no_tool content information.

* Removing a lot of NO_TOOL shenanigans.

* Update the tests.

Author: Narsil

integration-tests/models/__snapshots__/test_tools_llama/test_flash_llama_grammar_tools_insufficient_information_nostream.json

@@ -5,20 +5,20 @@
       "index": 0,
       "logprobs": null,
       "message": {
-        "content": "I am a helpful assistant!",
+        "content": "I'm an artificial intelligence model known as a large language model (LLM) or conversational AI",
         "role": "assistant",
         "tool_calls": null
       }
     }
   ],
-  "created": 1741263686,
+  "created": 1741693957,
   "id": "",
   "model": "meta-llama/Llama-3.1-8B-Instruct",
   "object": "chat.completion",
   "system_fingerprint": "3.1.2-dev0-native",
   "usage": {
-    "completion_tokens": 23,
-    "prompt_tokens": 494,
-    "total_tokens": 517
+    "completion_tokens": 12,
+    "prompt_tokens": 53,
+    "total_tokens": 65
   }
 }