Delete row ('824', '20731') from daily_volatility

ticker_id 824
day 20731
implied_open 0.7715010823064347
implied_high 0.8286493106254299
implied_low 0.7127654032008007
implied_close 0.7746759838797123
historical_open 0.5000469977912076
historical_high 0.5000469977912076
historical_low 0.5000469977912076
historical_close 0.5000469977912076
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