Delete row ('193', '20147') from daily_volatility

ticker_id 193
day 20147
implied_open 0.8810351865845087
implied_high 0.9159591038905613
implied_low 0.8159497043323198
implied_close 0.8365865645586236
historical_open 1.279485334030836
historical_high 1.279485334030836
historical_low 1.279485334030836
historical_close 1.279485334030836
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