Delete row ('2311', '20686') from daily_volatility

ticker_id 2311
day 20686
implied_open 0.7651512791598797
implied_high 0.8111873519724035
implied_low 0.7635638283732409
implied_close 0.795312844106016
historical_open 0.8254744090521523
historical_high 0.8254744090521523
historical_low 0.8254744090521523
historical_close 0.8254744090521523
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