Delete row ('1728', '20735') from daily_volatility

ticker_id 1728
day 20735
implied_open 0.3063780018212796
implied_high 0.3063780018212796
implied_low 0.2936783955281695
implied_close 0.2952658463148083
historical_open 0.2143058561962319
historical_high 0.2143058561962319
historical_low 0.2143058561962319
historical_close 0.2143058561962319
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