Delete row ('1670', '20377') from daily_volatility

ticker_id 1670
day 20377
implied_open 0.6699042319615544
implied_high 0.7508642220801309
implied_low 0.6381552162287792
implied_close 0.7445144189335758
historical_open 0.5286211119507053
historical_high 0.5286211119507053
historical_low 0.5286211119507053
historical_close 0.5286211119507053
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