Delete row ('2766', '20217') from daily_volatility

ticker_id 2766
day 20217
implied_open 0.2412925195690907
implied_high 0.2508172242889232
implied_low 0.2333552656358969
implied_close 0.2460548719290069
historical_open 0.4698854328450713
historical_high 0.4698854328450713
historical_low 0.4698854328450713
historical_close 0.4698854328450713
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