Delete row ('40', '20252') from daily_volatility

ticker_id 40
day 20252
implied_open 0.3365395667674159
implied_high 0.3635262301402747
implied_low 0.3365395667674159
implied_close 0.3508266238471647
historical_open 0.2031937006897606
historical_high 0.2031937006897606
historical_low 0.2031937006897606
historical_close 0.2031937006897606
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