Delete row ('510', '20110') from daily_volatility

ticker_id 510
day 20110
implied_open 0.4571858265519613
implied_high 0.4809975883515426
implied_low 0.4047999505928824
implied_close 0.4349615155390187
historical_open 0.7397520665736596
historical_high 0.7397520665736596
historical_low 0.7397520665736596
historical_close 0.7397520665736596
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