Delete row ('1953', '20405') from daily_volatility

ticker_id 1953
day 20405
implied_open 0.2111309546229543
implied_high 0.2206556593427869
implied_low 0.2079560530496768
implied_close 0.2174807577695094
historical_open 0.2111309546229543
historical_high 0.2111309546229543
historical_low 0.2111309546229543
historical_close 0.2111309546229543
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