Update app.py

remove wiki_tool. it is not reliable and wastes many of the 10 allocated agent steps

app.py

@@ -174,7 +174,7 @@ class BasicAgent:
             prompt_templates = yaml.safe_load(stream) 
         self.agent = CodeAgent(
             model=model,
-            tools=[final_answer, search_tool, wiki_tool, visit_webpage_tool, audio_description_tool],
+            tools=[final_answer, search_tool, visit_webpage_tool, audio_description_tool],
             max_steps=10,
             verbosity_level=1,
             additional_authorized_imports=[