Delete row ('40', '20217') from daily_volatility

ticker_id 40
day 20217
implied_open 0.252404675075562
implied_high 0.252404675075562
implied_low 0.2428799703557294
implied_close 0.2428799703557294
historical_open 0.3698760332868298
historical_high 0.3698760332868298
historical_low 0.3698760332868298
historical_close 0.3698760332868298
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