Delete row ('40', '20634') from daily_volatility

ticker_id 40
day 20634
implied_open 0.4365489663256575
implied_high 0.4746477852049876
implied_low 0.4365489663256575
implied_close 0.4571858265519613
historical_open 0.730227361853827
historical_high 0.730227361853827
historical_low 0.730227361853827
historical_close 0.730227361853827
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