Delete row ('1300', '20507') from daily_volatility

ticker_id 1300
day 20507
implied_open 0.5714822831899515
implied_high 0.601643848136088
implied_low 0.5603701276834803
implied_close 0.5905316926296166
historical_open 0.8000751964659323
historical_high 0.8000751964659323
historical_low 0.8000751964659323
historical_close 0.8000751964659323
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