Delete row ('2756', '20186') from daily_volatility

ticker_id 2756
day 20186
implied_open 0.3905128935131336
implied_high 0.4809975883515426
implied_low 0.3032031002480021
implied_close 0.4714728836317101
historical_open 0.3000281986747246
historical_high 0.3000281986747246
historical_low 0.3000281986747246
historical_close 0.3000281986747246
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