Delete row ('171', '20732') from daily_volatility

ticker_id 171
day 20732
implied_open 0.9064343991707288
implied_high 1.060417125474688
implied_low 0.7921379425327385
implied_close 0.9746947829961953
historical_open 0.671491682748193
historical_high 0.671491682748193
historical_low 0.671491682748193
historical_close 0.671491682748193
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