Delete row ('2661', '20747') from daily_volatility

ticker_id 2661
day 20747
implied_open 0.523858759590789
implied_high 0.530208562737344
implied_low 0.5143340548709564
implied_close 0.5175089564442339
historical_open 0.4921097438580139
historical_high 0.4921097438580139
historical_low 0.4921097438580139
historical_close 0.4921097438580139
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