Delete row ('1866', '20734') from daily_volatility

ticker_id 1866
day 20734
implied_open 0.0888972440517702
implied_high 0.0888972440517702
implied_low 0.077785088545299
implied_close 0.084134891691854
historical_open 0.8699230310780375
historical_high 0.8699230310780375
historical_low 0.8699230310780375
historical_close 0.8699230310780375
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