Delete row ('9', '20580') from daily_volatility

ticker_id 9
day 20580
implied_open 0.2301803640626194
implied_high 0.2397050687824519
implied_low 0.2238305609160644
implied_close 0.2254180117027031
historical_open 0.2682791829419495
historical_high 0.2682791829419495
historical_low 0.2682791829419495
historical_close 0.2682791829419495
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