Delete row ('193', '20090') from daily_volatility

ticker_id 193
day 20090
implied_open 0.6222807083623917
implied_high 0.6810163874680256
implied_low 0.5460830706037315
implied_close 0.6238681591490305
historical_open 0.7810257870262672
historical_high 0.7810257870262672
historical_low 0.7810257870262672
historical_close 0.7810257870262672
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