Delete row ('136', '20188') from daily_volatility

ticker_id 136
day 20188
implied_open 0.4905222930713751
implied_high 0.6778414858947481
implied_low 0.4905222930713751
implied_close 0.6302179622955855
historical_open 0.6111685528559204
historical_high 0.6111685528559204
historical_low 0.6111685528559204
historical_close 0.6111685528559204
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