Delete row ('1485', '20188') from daily_volatility

ticker_id 1485
day 20188
implied_open 0.5524328737502865
implied_high 0.6778414858947481
implied_low 0.5524328737502865
implied_close 0.6349803146555018
historical_open 0.4778226867782651
historical_high 0.4778226867782651
historical_low 0.4778226867782651
historical_close 0.4778226867782651
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