docs: sync Haystack API reference on Docusaurus

docs-website/reference/haystack-api/utils_api.md

@@ -196,47 +196,6 @@ Get a Azure AD token using the DefaultAzureCredential and the "https://cognitive
 
 ## base_serialization
 
-### serialize_class_instance
-
-```python
-serialize_class_instance(obj: Any) -> dict[str, Any]
-```
-
-Serializes an object that has a `to_dict` method into a dictionary.
-
-**Parameters:**
-
-- **obj** (<code>Any</code>) – The object to be serialized.
-
-**Returns:**
-
-- <code>dict\[str, Any\]</code> – A dictionary representation of the object.
-
-**Raises:**
-
-- <code>SerializationError</code> – If the object does not have a `to_dict` method.
-
-### deserialize_class_instance
-
-```python
-deserialize_class_instance(data: dict[str, Any]) -> Any
-```
-
-Deserializes an object from a dictionary representation generated by `auto_serialize_class_instance`.
-
-**Parameters:**
-
-- **data** (<code>dict\[str, Any\]</code>) – The dictionary to deserialize from.
-
-**Returns:**
-
-- <code>Any</code> – The deserialized object.
-
-**Raises:**
-
-- <code>DeserializationError</code> – If the serialization data is malformed, the class type cannot be imported, or the
-  class does not have a `from_dict` method.
-
 ## callable_serialization
 
 ### serialize_callable