Delete row ('1881', '20732') from daily_volatility

ticker_id 1881
day 20732
implied_open 0.3079654526079184
implied_high 0.3079654526079184
implied_low 0.2857411415949758
implied_close 0.3000281986747246
historical_open 0.2143058561962319
historical_high 0.2143058561962319
historical_low 0.2143058561962319
historical_close 0.2143058561962319
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