Delete row ('2457', '20734') from daily_volatility

ticker_id 2457
day 20734
implied_open 1.038192814461745
implied_high 3.406669388126767
implied_low 1.038192814461745
implied_close 3.152677262264566
historical_open 0.7397520665736596
historical_high 0.7397520665736596
historical_low 0.7397520665736596
historical_close 0.7397520665736596
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