Delete row ('1481', '20406') from daily_volatility

ticker_id 1481
day 20406
implied_open 0.8572234247849274
implied_high 0.8969096944508963
implied_low 0.8127748027590423
implied_close 0.814362253545681
historical_open 0.9826320369293889
historical_high 0.9826320369293889
historical_low 0.9826320369293889
historical_close 0.9826320369293889
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