Delete row ('193', '20609') from daily_volatility

ticker_id 193
day 20609
implied_open 0.6857787398279419
implied_high 0.7810257870262672
implied_low 0.6508548225218893
implied_close 0.704828149267607
historical_open 0.7111779524141619
historical_high 0.7111779524141619
historical_low 0.7111779524141619
historical_close 0.7111779524141619
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