Delete row ('600', '20599') from daily_volatility

ticker_id 600
day 20599
implied_open 0.8588108755715662
implied_high 0.8937347928776188
implied_low 0.8588108755715662
implied_close 0.8905598913043412
historical_open 0.8508736216383724
historical_high 0.8508736216383724
historical_low 0.8508736216383724
historical_close 0.8508736216383724
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