Delete row ('1300', '20740') from daily_volatility

ticker_id 1300
day 20740
implied_open 0.6429175685886955
implied_high 0.671491682748193
implied_low 0.6381552162287792
implied_close 0.6603795272417218
historical_open 0.6318054130822243
historical_high 0.6318054130822243
historical_low 0.6318054130822243
historical_close 0.6318054130822243
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