Delete row ('2770', '20738') from daily_volatility

ticker_id 2770
day 20738
implied_open 0.284153690808337
implied_high 0.2952658463148083
implied_low 0.2762164368751432
implied_close 0.277803887661782
historical_open 0.2603419290087557
historical_high 0.2603419290087557
historical_low 0.2603419290087557
historical_close 0.2603419290087557
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