Delete row ('2757', '20739') from daily_volatility

ticker_id 2757
day 20739
implied_open 0.1920815451832893
implied_high 0.1920815451832893
implied_low 0.1555701770905979
implied_close 0.1793819388901792
historical_open 0.1460454723707654
historical_high 0.1460454723707654
historical_low 0.1460454723707654
historical_close 0.1460454723707654
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