Delete row ('1993', '20691') from daily_volatility

ticker_id 1993
day 20691
implied_open 0.7842006885995447
implied_high 0.7873755901728222
implied_low 0.7207026571339945
implied_close 0.7349897142137433
historical_open 0.8746853834379538
historical_high 0.8746853834379538
historical_low 0.8746853834379538
historical_close 0.8746853834379538
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