Delete row ('891', '20735') from daily_volatility

ticker_id 891
day 20735
implied_open 0.2412925195690907
implied_high 0.2412925195690907
implied_low 0.2000187991164831
implied_close 0.2174807577695094
historical_open 0.1793819388901792
historical_high 0.1793819388901792
historical_low 0.1793819388901792
historical_close 0.1793819388901792
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