Delete row ('2519', '20392') from daily_volatility

ticker_id 2519
day 20392
implied_open 0.5190964072308727
implied_high 0.5397332674571765
implied_low 0.5095717025110401
implied_close 0.5397332674571765
historical_open 0.4714728836317101
historical_high 0.4714728836317101
historical_low 0.4714728836317101
historical_close 0.4714728836317101
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