Delete row ('2770', '20011') from daily_volatility

ticker_id 2770
day 20011
implied_open 0.2397050687824519
implied_high 0.2460548719290069
implied_low 0.2381176179958132
implied_close 0.2397050687824519
historical_open 0.2397050687824519
historical_high 0.2397050687824519
historical_low 0.2397050687824519
historical_close 0.2397050687824519
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