Delete row ('2766', '20739') from daily_volatility

ticker_id 2766
day 20739
implied_open 0.1936689959699281
implied_high 0.1984313483298443
implied_low 0.1825568404634567
implied_close 0.1825568404634567
historical_open 0.1508078247306817
historical_high 0.1508078247306817
historical_low 0.1508078247306817
historical_close 0.1508078247306817
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