Update app.py

app.py

@@ -57,9 +57,6 @@ llm = Llama.from_pretrained(
     verbose=False
 )
 
-# locker that disallow access to the tts object from more then one thread
-locker = Lock()
-
 #guardrail model
 guard_llm = "llama-3.1-8b-instant"