Delete row ('1377', '20677') from daily_volatility

ticker_id 1377
day 20677
implied_open 1.142964566379903
implied_high 1.671585678330608
implied_low 0.7619763775866022
implied_close 0.9683449798496402
historical_open 1.149314369526458
historical_high 1.149314369526458
historical_low 1.149314369526458
historical_close 1.149314369526458
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