Delete row ('2763', '20503') from daily_volatility

ticker_id 2763
day 20503
implied_open 0.1476329231574041
implied_high 0.1650948818104304
implied_low 0.1396956692242104
implied_close 0.1492203739440429
historical_open 0.1492203739440429
historical_high 0.1492203739440429
historical_low 0.1492203739440429
historical_close 0.1492203739440429
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