Delete row ('2770', '20713') from daily_volatility

ticker_id 2770
day 20713
implied_open 0.2968532971014471
implied_high 0.2968532971014471
implied_low 0.2825662400216983
implied_close 0.2825662400216983
historical_open 0.265104281368672
historical_high 0.265104281368672
historical_low 0.265104281368672
historical_close 0.265104281368672
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