Delete row ('1481', '20207') from daily_volatility

ticker_id 1481
day 20207
implied_open 0.8207120566922361
implied_high 0.8286493106254299
implied_low 0.8016626472525711
implied_close 0.8064249996124873
historical_open 1.020730855808719
historical_high 1.020730855808719
historical_low 1.020730855808719
historical_close 1.020730855808719
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