Delete row ('2717', '20670') from daily_volatility

ticker_id 2717
day 20670
implied_open 0.3222525096876671
implied_high 0.3492391730605259
implied_low 0.3159027065411121
implied_close 0.3174901573277509
historical_open 0.2920909447415308
historical_high 0.2920909447415308
historical_low 0.2920909447415308
historical_close 0.2920909447415308
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