Delete row ('80', '20698') from daily_volatility

ticker_id 80
day 20698
implied_open 0.2127184054095931
implied_high 0.2158933069828706
implied_low 0.1555701770905979
implied_close 0.1984313483298443
historical_open 0.1793819388901792
historical_high 0.1793819388901792
historical_low 0.1793819388901792
historical_close 0.1793819388901792
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