Delete row ('1685', '20595') from daily_volatility

ticker_id 1685
day 20595
implied_open 0.8461112692784561
implied_high 0.911196751530645
implied_low 0.8207120566922361
implied_close 0.8492861708517336
historical_open 0.8238869582655136
historical_high 0.8238869582655136
historical_low 0.8238869582655136
historical_close 0.8238869582655136
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