Delete row ('40', '20264') from daily_volatility

ticker_id 40
day 20264
implied_open 0.2095435038363156
implied_high 0.2174807577695094
implied_low 0.1936689959699281
implied_close 0.2111309546229543
historical_open 0.3206650589010284
historical_high 0.3206650589010284
historical_low 0.3206650589010284
historical_close 0.3206650589010284
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