Delete row ('2305', '20147') from daily_volatility

ticker_id 2305
day 20147
implied_open 1.08264143648763
implied_high 1.189000639192427
implied_low 0.9778696845694728
implied_close 1.025493208168635
historical_open 1.365207676509329
historical_high 1.365207676509329
historical_low 1.365207676509329
historical_close 1.365207676509329
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