Delete row ('1671', '20734') from daily_volatility

ticker_id 1671
day 20734
implied_open 0.2619293797953945
implied_high 0.2730415353018658
implied_low 0.2555795766488395
implied_close 0.271454084515227
historical_open 0.1936689959699281
historical_high 0.1936689959699281
historical_low 0.1936689959699281
historical_close 0.1936689959699281
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