Delete row ('1544', '20146') from daily_volatility

ticker_id 1544
day 20146
implied_open 0.187319192823373
implied_high 0.1968438975432056
implied_low 0.1762070373169017
implied_close 0.1968438975432056
historical_open 0.1666823325970692
historical_high 0.1666823325970692
historical_low 0.1666823325970692
historical_close 0.1666823325970692
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