Delete row ('2766', '20566') from daily_volatility

ticker_id 2766
day 20566
implied_open 0.2412925195690907
implied_high 0.252404675075562
implied_low 0.2349427164225357
implied_close 0.2397050687824519
historical_open 0.2476423227156457
historical_high 0.2476423227156457
historical_low 0.2476423227156457
historical_close 0.2476423227156457
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