Delete row ('2762', '20040') from daily_volatility

ticker_id 2762
day 20040
implied_open 0.1206462597845453
implied_high 0.1206462597845453
implied_low 0.1095341042780741
implied_close 0.1127090058513516
historical_open 0.0952470471983253
historical_high 0.0952470471983253
historical_low 0.0952470471983253
historical_close 0.0952470471983253
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