Delete row ('2762', '20438') from daily_volatility

ticker_id 2762
day 20438
implied_open 0.1127090058513516
implied_high 0.1269960629311004
implied_low 0.1127090058513516
implied_close 0.1174713582112678
historical_open 0.1063592027047966
historical_high 0.1063592027047966
historical_low 0.1063592027047966
historical_close 0.1063592027047966
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