Delete row ('2687', '20714') from daily_volatility

ticker_id 2687
day 20714
implied_open 0.6238681591490305
implied_high 0.671491682748193
implied_low 0.5762446355498678
implied_close 0.6000563973494492
historical_open 0.7127654032008007
historical_high 0.7127654032008007
historical_low 0.7127654032008007
historical_close 0.7127654032008007
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