Delete row ('2387', '20486') from daily_volatility

ticker_id 2387
day 20486
implied_open 0.704828149267607
implied_high 0.730227361853827
implied_low 0.704828149267607
implied_close 0.7127654032008007
historical_open 0.6984783461210519
historical_high 0.6984783461210519
historical_low 0.6984783461210519
historical_close 0.6984783461210519
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