Delete row ('6', '20644') from daily_volatility

ticker_id 6
day 20644
implied_open 1.392194339882188
implied_high 1.404893946175298
implied_low 1.335046111563192
implied_close 1.357270422576135
historical_open 1.339808463923109
historical_high 1.339808463923109
historical_low 1.339808463923109
historical_close 1.339808463923109
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