Delete row ('1300', '20747') from daily_volatility

ticker_id 1300
day 20747
implied_open 0.671491682748193
implied_high 0.6873661906145806
implied_low 0.6572046256684443
implied_close 0.6619669780283606
historical_open 0.6667293303882769
historical_high 0.6667293303882769
historical_low 0.6667293303882769
historical_close 0.6667293303882769
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