Delete row ('1961', '20411') from daily_volatility

ticker_id 1961
day 20411
implied_open 0.2047811514763993
implied_high 0.2079560530496768
implied_low 0.1968438975432056
implied_close 0.2016062499031218
historical_open 0.180969389676818
historical_high 0.180969389676818
historical_low 0.180969389676818
historical_close 0.180969389676818
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