Delete row ('2602', '20734') from daily_volatility

ticker_id 2602
day 20734
implied_open 0.271454084515227
implied_high 0.2873285923816146
implied_low 0.252404675075562
implied_close 0.2539921258622007
historical_open 0.1904940943966505
historical_high 0.1904940943966505
historical_low 0.1904940943966505
historical_close 0.1904940943966505
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