Delete row ('2350', '20718') from daily_volatility

ticker_id 2350
day 20718
implied_open 0.1190588089979066
implied_high 0.1190588089979066
implied_low 0.1127090058513516
implied_close 0.1142964566379903
historical_open 0.0952470471983253
historical_high 0.0952470471983253
historical_low 0.0952470471983253
historical_close 0.0952470471983253
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