Delete row ('543', '20720') from daily_volatility

ticker_id 543
day 20720
implied_open 0.6508548225218893
implied_high 0.6603795272417218
implied_low 0.639742667015418
implied_close 0.6540297240951668
historical_open 0.7334022634271045
historical_high 0.7334022634271045
historical_low 0.7334022634271045
historical_close 0.7334022634271045
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