remove cohere from testing and fix quality (#2902)

Author: hanouticelina

src/huggingface_hub/inference/_providers/cohere.py

@@ -12,4 +12,4 @@ def __init__(self):
         super().__init__(provider=_PROVIDER, base_url=_BASE_URL)
 
     def _prepare_route(self, mapped_model: str) -> str:
-            return "/compatibility/v1/chat/completions"
+        return "/compatibility/v1/chat/completions"

tests/cassettes/TestInferenceClient.test_chat_completion_no_stream[cohere,conversational].yaml

@@ -63,9 +63,6 @@
     "black-forest-labs": {
         "text-to-image": "black-forest-labs/FLUX.1-dev",
     },
-    "cohere": {
-        "conversational": "CohereForAI/c4ai-command-r7b-12-2024",
-    },
     "together": {
         "conversational": "meta-llama/Meta-Llama-3-8B-Instruct",
         "text-generation": "meta-llama/Llama-2-70b-hf",