docs: remove duplicate quote in AzureOpenAIEmbeddings doc (#18315)

- **Description:** Remove duplicate quote in AzureOpenAIEmbeddings doc,
remove trailing spaces.
- **Issue:** No
- **Dependencies:** No

libs/partners/openai/langchain_openai/embeddings/azure.py

@@ -23,18 +23,18 @@ class AzureOpenAIEmbeddings(OpenAIEmbeddings):
 
             from langchain_openai import AzureOpenAIEmbeddings
 
-            openai = AzureOpenAIEmbeddings(model=""text-embedding-3-large")
+            openai = AzureOpenAIEmbeddings(model="text-embedding-3-large")
     """
 
     azure_endpoint: Union[str, None] = None
     """Your Azure endpoint, including the resource.
 
         Automatically inferred from env var `AZURE_OPENAI_ENDPOINT` if not provided.
-        
+
         Example: `https://example-resource.azure.openai.com/`
     """
     deployment: Optional[str] = Field(default=None, alias="azure_deployment")
-    """A model deployment. 
+    """A model deployment.
 
         If given sets the base client URL to include `/deployments/{azure_deployment}`.
         Note: this means you won't be able to use non-deployment endpoints.
@@ -46,7 +46,7 @@ class AzureOpenAIEmbeddings(OpenAIEmbeddings):
 
         Automatically inferred from env var `AZURE_OPENAI_AD_TOKEN` if not provided.
 
-        For more: 
+        For more:
         https://www.microsoft.com/en-us/security/business/identity-access/microsoft-entra-id.
     """  # noqa: E501
     azure_ad_token_provider: Union[Callable[[], str], None] = None