Delete row ('2780', '20735') from daily_volatility

ticker_id 2780
day 20735
implied_open 0.3238399604743059
implied_high 0.3365395667674159
implied_low 0.3190776081143896
implied_close 0.3254274112609447
historical_open 0.2460548719290069
historical_high 0.2460548719290069
historical_low 0.2460548719290069
historical_close 0.2460548719290069
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