Delete row ('2717', '20270') from daily_volatility

ticker_id 2717
day 20270
implied_open 0.1984313483298443
implied_high 0.2095435038363156
implied_low 0.1968438975432056
implied_close 0.2047811514763993
historical_open 0.1825568404634567
historical_high 0.1825568404634567
historical_low 0.1825568404634567
historical_close 0.1825568404634567
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