Delete row ('193', '20557') from daily_volatility

ticker_id 193
day 20557
implied_open 0.911196751530645
implied_high 0.9381834149035039
implied_low 0.8492861708517336
implied_close 0.8826226373711474
historical_open 0.6921285429744969
historical_high 0.6921285429744969
historical_low 0.6921285429744969
historical_close 0.6921285429744969
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