Delete row ('2519', '20145') from daily_volatility

ticker_id 2519
day 20145
implied_open 0.6064062004960041
implied_high 0.6349803146555018
implied_low 0.5794195371231453
implied_close 0.6111685528559204
historical_open 0.5635450292567578
historical_high 0.5635450292567578
historical_low 0.5635450292567578
historical_close 0.5635450292567578
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