Fix model errors (#17171)

frigate/embeddings/__init__.py

@@ -225,6 +225,9 @@ class EmbeddingsContext:
             if os.path.isfile(file_path):
                 os.unlink(file_path)
 
+        if len(os.listdir(folder)) == 0:
+            os.rmdir(folder)
+
     def update_description(self, event_id: str, description: str) -> None:
         self.requestor.send_data(
             EmbeddingsRequestEnum.embed_description.value,