Delete row ('2661', '20388') from daily_volatility

ticker_id 2661
day 20388
implied_open 0.6079936512826429
implied_high 0.6254556099356692
implied_low 0.601643848136088
implied_close 0.6254556099356692
historical_open 0.4746477852049876
historical_high 0.4746477852049876
historical_low 0.4746477852049876
historical_close 0.4746477852049876
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