Delete row ('2631', '20300') from daily_volatility

ticker_id 2631
day 20300
implied_open 0.8810351865845087
implied_high 0.9238963578237551
implied_low 0.8127748027590423
implied_close 0.9175465546772
historical_open 0.9191340054638388
historical_high 0.9191340054638388
historical_low 0.9191340054638388
historical_close 0.9191340054638388
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