Delete row ('1571', '20119') from daily_volatility

ticker_id 1571
day 20119
implied_open 0.2222431101294256
implied_high 0.2270054624893419
implied_low 0.2174807577695094
implied_close 0.2270054624893419
historical_open 0.1635074310237917
historical_high 0.1635074310237917
historical_low 0.1635074310237917
historical_close 0.1635074310237917
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