Delete row ('1685', '20651') from daily_volatility

ticker_id 1685
day 20651
implied_open 0.9826320369293889
implied_high 1.009618700302248
implied_low 0.9635826274897239
implied_close 1.003268897155693
historical_open 1.212812400992008
historical_high 1.212812400992008
historical_low 1.212812400992008
historical_close 1.212812400992008
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