Delete row ('40', '20266') from daily_volatility

ticker_id 40
day 20266
implied_open 0.2158933069828706
implied_high 0.2158933069828706
implied_low 0.2016062499031218
implied_close 0.2095435038363156
historical_open 0.3206650589010284
historical_high 0.3206650589010284
historical_low 0.3206650589010284
historical_close 0.3206650589010284
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