Delete row ('510', '20314') from daily_volatility

ticker_id 510
day 20314
implied_open 0.4032124998062436
implied_high 0.43337406475238
implied_low 0.3984501474463274
implied_close 0.4127372045260762
historical_open 0.4413113186855737
historical_high 0.4413113186855737
historical_low 0.4413113186855737
historical_close 0.4413113186855737
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