Delete row ('1856', '20675') from daily_volatility

ticker_id 1856
day 20675
implied_open 1.036605363675107
implied_high 1.122327706153599
implied_low 1.036605363675107
implied_close 1.06994183019452
historical_open 0.9127842023172839
historical_high 0.9127842023172839
historical_low 0.9127842023172839
historical_close 0.9127842023172839
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