Delete row ('136', '20662') from daily_volatility

ticker_id 136
day 20662
implied_open 0.9175465546772
implied_high 1.052479871541494
implied_low 0.9064343991707288
implied_close 0.9635826274897239
historical_open 0.988981840075944
historical_high 0.988981840075944
historical_low 0.988981840075944
historical_close 0.988981840075944
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