Delete row ('2727', '20731') from daily_volatility

ticker_id 2727
day 20731
implied_open 0.3587638777803585
implied_high 0.3587638777803585
implied_low 0.2635168305820332
implied_close 0.2730415353018658
historical_open 0.2174807577695094
historical_high 0.2174807577695094
historical_low 0.2174807577695094
historical_close 0.2174807577695094
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