Delete row ('1338', '20321') from daily_volatility

ticker_id 1338
day 20321
implied_open 0.2190682085561481
implied_high 0.2270054624893419
implied_low 0.2190682085561481
implied_close 0.2238305609160644
historical_open 0.1650948818104304
historical_high 0.1650948818104304
historical_low 0.1650948818104304
historical_close 0.1650948818104304
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