Delete row ('9', '20522') from daily_volatility

ticker_id 9
day 20522
implied_open 0.271454084515227
implied_high 0.2746289860885045
implied_low 0.2571670274354782
implied_close 0.2666917321553107
historical_open 0.2571670274354782
historical_high 0.2571670274354782
historical_low 0.2571670274354782
historical_close 0.2571670274354782
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