Delete row ('1321', '20315') from daily_volatility

ticker_id 1321
day 20315
implied_open 1.066766928621243
implied_high 1.235036712004951
implied_low 1.033430462101829
implied_close 1.208050048632092
historical_open 0.9524704719832526
historical_high 0.9524704719832526
historical_low 0.9524704719832526
historical_close 0.9524704719832526
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