Delete row ('2759', '20504') from daily_volatility

ticker_id 2759
day 20504
implied_open 0.1936689959699281
implied_high 0.2000187991164831
implied_low 0.174619586530263
implied_close 0.174619586530263
historical_open 0.161919980237153
historical_high 0.161919980237153
historical_low 0.161919980237153
historical_close 0.161919980237153
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