Delete row ('1300', '20509') from daily_volatility

ticker_id 1300
day 20509
implied_open 0.627043060722308
implied_high 0.646092470161973
implied_low 0.6111685528559204
implied_close 0.6175183560024754
historical_open 0.7937253933193773
historical_high 0.7937253933193773
historical_low 0.7937253933193773
historical_close 0.7937253933193773
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