Delete row ('2661', '20157') from daily_volatility

ticker_id 2661
day 20157
implied_open 0.730227361853827
implied_high 0.814362253545681
implied_low 0.730227361853827
implied_close 0.8048375488258486
historical_open 0.8318242121987074
historical_high 0.8318242121987074
historical_low 0.8318242121987074
historical_close 0.8318242121987074
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