Delete row ('40', '20644') from daily_volatility

ticker_id 40
day 20644
implied_open 0.4667105312717938
implied_high 0.4667105312717938
implied_low 0.439723867898935
implied_close 0.4555983757653225
historical_open 0.7492767712934921
historical_high 0.7492767712934921
historical_low 0.7492767712934921
historical_close 0.7492767712934921
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