Delete row ('9', '20636') from daily_volatility

ticker_id 9
day 20636
implied_open 0.284153690808337
implied_high 0.2873285923816146
implied_low 0.2762164368751432
implied_close 0.2793913384484208
historical_open 0.277803887661782
historical_high 0.277803887661782
historical_low 0.277803887661782
historical_close 0.277803887661782
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