Delete row ('9', '20137') from daily_volatility

ticker_id 9
day 20137
implied_open 0.2095435038363156
implied_high 0.2206556593427869
implied_low 0.2095435038363156
implied_close 0.2127184054095931
historical_open 0.3047905510346408
historical_high 0.3047905510346408
historical_low 0.3047905510346408
historical_close 0.3047905510346408
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