Update app.py

app.py

@@ -224,7 +224,7 @@ async def sign_message(payload: dict):
 
 
 @app.post("/relay/broadcast/solana")
-async def broadcast_transaction(payload: TransactionPayload, request: Request):
+async def broadcast_transaction(payload: TransactionPayload):
     """
     Receives a pre-signed transaction, strips identifying headers and broadcasts to the Solana mainnet.
     """