Delete row ('1992', '20182') from daily_volatility

ticker_id 1992
day 20182
implied_open 0.7873755901728222
implied_high 1.115977903007044
implied_low 0.7508642220801309
implied_close 0.8635732279314824
historical_open 0.8873849897310637
historical_high 0.8873849897310637
historical_low 0.8873849897310637
historical_close 0.8873849897310637
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