Delete row ('2640', '20732') from daily_volatility

ticker_id 2640
day 20732
implied_open 0.9223089070371163
implied_high 1.260435924591171
implied_low 0.9223089070371163
implied_close 1.220749654925202
historical_open 0.3746383856467461
historical_high 0.3746383856467461
historical_low 0.3746383856467461
historical_close 0.3746383856467461
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