Delete row ('2643', '20735') from daily_volatility

ticker_id 2643
day 20735
implied_open 0.4047999505928824
implied_high 0.4047999505928824
implied_low 0.3857505411532173
implied_close 0.3905128935131336
historical_open 0.2539921258622007
historical_high 0.2539921258622007
historical_low 0.2539921258622007
historical_close 0.2539921258622007
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