fix linter

Author: pieroit

Diff for: core/cat/mad_hatter/decorators/tool.py

@@ -1,12 +1,6 @@
-import inspect
-
 from typing import Union, Callable, List
 from inspect import signature
 
-from langchain_core.tools import BaseTool
-
-
-
 # All @tool decorated functions in plugins become a CatTool.
 # The difference between base langchain Tool and CatTool is that CatTool has an instance of the cat as attribute (set by the MadHatter)
 class CatTool: