Delete row ('2387', '20307') from daily_volatility

ticker_id 2387
day 20307
implied_open 0.3460642714872484
implied_high 0.3540015254204422
implied_low 0.342889369913971
implied_close 0.3492391730605259
historical_open 0.4190870076726312
historical_high 0.4190870076726312
historical_low 0.4190870076726312
historical_close 0.4190870076726312
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