Delete row ('2766', '20460') from daily_volatility

ticker_id 2766
day 20460
implied_open 0.1793819388901792
implied_high 0.1920815451832893
implied_low 0.1635074310237917
implied_close 0.1920815451832893
historical_open 0.1317584152910166
historical_high 0.1317584152910166
historical_low 0.1317584152910166
historical_close 0.1317584152910166
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