Delete row ('2631', '20571') from daily_volatility

ticker_id 2631
day 20571
implied_open 0.8603983263582049
implied_high 0.8905598913043412
implied_low 0.8270618598387911
implied_close 0.8302367614120686
historical_open 1.617612351584891
historical_high 1.617612351584891
historical_low 1.617612351584891
historical_close 1.617612351584891
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