Delete row ('1658', '20496') from daily_volatility

ticker_id 1658
day 20496
implied_open 0.6873661906145806
implied_high 0.7476893205068534
implied_low 0.6222807083623917
implied_close 0.7032406984809682
historical_open 0.530208562737344
historical_high 0.530208562737344
historical_low 0.530208562737344
historical_close 0.530208562737344
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