Delete row ('6', '20300') from daily_volatility

ticker_id 6
day 20300
implied_open 1.265198276951087
implied_high 1.273135530884281
implied_low 1.18582573761915
implied_close 1.200112794698898
historical_open 1.052479871541494
historical_high 1.052479871541494
historical_low 1.052479871541494
historical_close 1.052479871541494
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