Delete row ('2604', '20255') from daily_volatility

ticker_id 2604
day 20255
implied_open 0.2190682085561481
implied_high 0.2190682085561481
implied_low 0.187319192823373
implied_close 0.1936689959699281
historical_open 0.2079560530496768
historical_high 0.2079560530496768
historical_low 0.2079560530496768
historical_close 0.2079560530496768
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