remove unnecessary import

Author: voorhs

src/autointent/_wrappers/embedder/sentence_transformers.py

@@ -312,8 +312,6 @@ def load(cls, path: Path) -> "SentenceTransformerEmbeddingBackend":
         """
         import json
 
-        from autointent.configs._embedder import SentenceTransformerEmbeddingConfig
-
         # Load configuration
         config_path = path / "config.json"
         with config_path.open("r", encoding="utf-8") as file: