Delete row ('2770', '20634') from daily_volatility

ticker_id 2770
day 20634
implied_open 0.2746289860885045
implied_high 0.2873285923816146
implied_low 0.2730415353018658
implied_close 0.2825662400216983
historical_open 0.3222525096876671
historical_high 0.3222525096876671
historical_low 0.3222525096876671
historical_close 0.3222525096876671
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