Delete row ('6', '20483') from daily_volatility

ticker_id 6
day 20483
implied_open 1.255673572231255
implied_high 1.365207676509329
implied_low 1.193762991552343
implied_close 1.212812400992008
historical_open 1.066766928621243
historical_high 1.066766928621243
historical_low 1.066766928621243
historical_close 1.066766928621243
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