Delete row ('2770', '20312') from daily_volatility

ticker_id 2770
day 20312
implied_open 0.2127184054095931
implied_high 0.2127184054095931
implied_low 0.2016062499031218
implied_close 0.2031937006897606
historical_open 0.1952564467565668
historical_high 0.1952564467565668
historical_low 0.1952564467565668
historical_close 0.1952564467565668
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