Delete row ('331', '20158') from daily_volatility

ticker_id 331
day 20158
implied_open 0.9080218499573676
implied_high 0.9080218499573676
implied_low 0.8556359739982887
implied_close 0.8699230310780375
historical_open 0.8746853834379538
historical_high 0.8746853834379538
historical_low 0.8746853834379538
historical_close 0.8746853834379538
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