Delete row ('2686', '20734') from daily_volatility

ticker_id 2686
day 20734
implied_open 0.4952846454312914
implied_high 0.5032218993644851
implied_low 0.4778226867782651
implied_close 0.4825850391381813
historical_open 0.4587732773386
historical_high 0.4587732773386
historical_low 0.4587732773386
historical_close 0.4587732773386
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