Delete row ('1992', '20189') from daily_volatility

ticker_id 1992
day 20189
implied_open 0.9508830211966139
implied_high 1.004856347942332
implied_low 0.9143716531039225
implied_close 0.9143716531039225
historical_open 1.015968503448803
historical_high 1.015968503448803
historical_low 1.015968503448803
historical_close 1.015968503448803
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