Delete row ('547', '20734') from daily_volatility

ticker_id 547
day 20734
implied_open 0.6191058067891142
implied_high 1.412831200108491
implied_low 0.5365583658838989
implied_close 1.182650836045872
historical_open 0.2412925195690907
historical_high 0.2412925195690907
historical_low 0.2412925195690907
historical_close 0.2412925195690907
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