refactor: Remove unused imports and update langflow components

src/backend/base/langflow/components/vectorstores/Pinecone.py

@@ -4,7 +4,6 @@ from langchain_core.retrievers import BaseRetriever
 from langchain_pinecone import Pinecone
 
 from langflow.custom import Component
-from langflow.field_typing import Retriever
 from langflow.helpers.data import docs_to_data
 from langflow.io import BoolInput, DropdownInput, HandleInput, IntInput, Output, SecretStrInput, StrInput
 from langflow.schema import Data

src/backend/base/langflow/components/vectorstores/Vectara.py

@@ -8,7 +8,6 @@ from langflow.custom import Component
 from langflow.helpers.data import docs_to_data
 from langflow.io import BoolInput, HandleInput, IntInput, Output, SecretStrInput, StrInput
 from langflow.schema import Data
-from langflow.field_typing import Retriever
 
 
 class VectaraVectorStoreComponent(Component):

src/backend/base/langflow/schema/message.py

@@ -14,10 +14,6 @@ from langflow.base.prompts.utils import dict_values_to_string
 from langflow.schema.data import Data
 from langflow.schema.image import Image, get_file_paths, is_image_file
 
-from langflow.base.prompts.utils import dict_values_to_string
-from langflow.schema.data import Data
-from langflow.schema.image import Image, get_file_paths, is_image_file
-
 
 def _timestamp_to_str(timestamp: datetime) -> str:
     return timestamp.strftime("%Y-%m-%d %H:%M:%S")

src/backend/base/langflow/services/cache/service.py

@@ -7,7 +7,6 @@ from typing import Generic, Optional
 
 from loguru import logger
 
-from langflow.services.base import Service
 from langflow.services.cache.base import AsyncBaseCacheService, AsyncLockType, CacheService, LockType
 from langflow.services.cache.utils import CacheMiss