Delete row ('2539', '20241') from daily_volatility

ticker_id 2539
day 20241
implied_open 0.2936783955281695
implied_high 0.3079654526079184
implied_low 0.2920909447415308
implied_close 0.2936783955281695
historical_open 0.4619481789118776
historical_high 0.4619481789118776
historical_low 0.4619481789118776
historical_close 0.4619481789118776
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