Delete row ('1550', '20732') from daily_volatility

ticker_id 1550
day 20732
implied_open 0.9270712593970326
implied_high 0.9715198814229177
implied_low 0.9016720468108126
implied_close 0.9080218499573676
historical_open 0.4921097438580139
historical_high 0.4921097438580139
historical_low 0.4921097438580139
historical_close 0.4921097438580139
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