Delete row ('901', '20731') from daily_volatility

ticker_id 901
day 20731
implied_open 1.114390452220406
implied_high 2.266879723320141
implied_low 0.8588108755715662
implied_close 1.74619586530263
historical_open 0.7143528539874394
historical_high 0.7143528539874394
historical_low 0.7143528539874394
historical_close 0.7143528539874394
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