Update app.py

app.py

@@ -14,7 +14,4 @@ subprocess.run(['7z', 'x', 'voicevox_engine-linux-cpu-0.19.1.7z.001'])
 subprocess.run(['rm', 'voicevox_engine-linux-cpu-0.19.1.7z.001'])
 
 # Clone voicevox engine repository
-subprocess.run(['git', 'clone', 'https://github.com/VOICEVOX/voicevox_engine', '-q'])
-
-# Install necessary packages for voicevox engine and llama.cpp public url
-subprocess.run(['npm', 'install', '-g', 'localtunnel', '-q'])
+subprocess.run(['git', 'clone', 'https://github.com/VOICEVOX/voicevox_engine', '-q'])