Delete row ('1571', '20269') from daily_volatility

ticker_id 1571
day 20269
implied_open 0.1762070373169017
implied_high 0.1857317420367343
implied_low 0.1762070373169017
implied_close 0.180969389676818
historical_open 0.1555701770905979
historical_high 0.1555701770905979
historical_low 0.1555701770905979
historical_close 0.1555701770905979
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