Delete row ('2757', '20151') from daily_volatility

ticker_id 2757
day 20151
implied_open 0.2079560530496768
implied_high 0.2301803640626194
implied_low 0.1936689959699281
implied_close 0.2111309546229543
historical_open 0.168269783383708
historical_high 0.168269783383708
historical_low 0.168269783383708
historical_close 0.168269783383708
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