remove unnecessary import

app.py

@@ -10,10 +10,10 @@ from smolagents import (
     PythonInterpreterTool,
     VisitWebpageTool,
     GoogleSearchTool, 
-    WikipediaTool,
 )
 
 from rate_limiter import RateLimiter
+
 from assemblyai_audio__transcript_tool import AssemblyAIAudioTranscriptTool
 from wikipedia_tool import WikipediaTool
 from youtube_transcript_tool import YoutubeTranscriptTool