Delete row ('1068', '20187') from daily_volatility

ticker_id 1068
day 20187
implied_open 0.9858069385026665
implied_high 0.9937441924358603
implied_low 0.7207026571339945
implied_close 0.7286399110671883
historical_open 0.847698720065095
historical_high 0.847698720065095
historical_low 0.847698720065095
historical_close 0.847698720065095
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