Delete row ('928', '20732') from daily_volatility

ticker_id 928
day 20732
implied_open 0.3587638777803585
implied_high 0.3714634840734685
implied_low 0.2635168305820332
implied_close 0.2746289860885045
historical_open 0.2381176179958132
historical_high 0.2381176179958132
historical_low 0.2381176179958132
historical_close 0.2381176179958132
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