Delete row ('2764', '20027') from daily_volatility

ticker_id 2764
day 20027
implied_open 0.2031937006897606
implied_high 0.2031937006897606
implied_low 0.1920815451832893
implied_close 0.2016062499031218
historical_open 0.1460454723707654
historical_high 0.1460454723707654
historical_low 0.1460454723707654
historical_close 0.1460454723707654
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