Delete row ('193', '20710') from daily_volatility

ticker_id 193
day 20710
implied_open 0.5286211119507053
implied_high 0.5698948324033128
implied_low 0.4984595470045688
implied_close 0.5381458166705377
historical_open 0.7810257870262672
historical_high 0.7810257870262672
historical_low 0.7810257870262672
historical_close 0.7810257870262672
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