Delete row ('2756', '19996') from daily_volatility

ticker_id 2756
day 19996
implied_open 0.1555701770905979
implied_high 0.1666823325970692
implied_low 0.1555701770905979
implied_close 0.1603325294505142
historical_open 0.1460454723707654
historical_high 0.1460454723707654
historical_low 0.1460454723707654
historical_close 0.1460454723707654
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