Delete row ('2763', '20306') from daily_volatility

ticker_id 2763
day 20306
implied_open 0.1666823325970692
implied_high 0.168269783383708
implied_low 0.1603325294505142
implied_close 0.1666823325970692
historical_open 0.1444580215841267
historical_high 0.1444580215841267
historical_low 0.1444580215841267
historical_close 0.1444580215841267
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