Delete row ('1366', '20140') from daily_volatility

ticker_id 1366
day 20140
implied_open 0.2031937006897606
implied_high 0.2238305609160644
implied_low 0.1968438975432056
implied_close 0.2190682085561481
historical_open 0.2095435038363156
historical_high 0.2095435038363156
historical_low 0.2095435038363156
historical_close 0.2095435038363156
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