Delete row ('135', '20731') from daily_volatility

ticker_id 135
day 20731
implied_open 0.439723867898935
implied_high 0.439723867898935
implied_low 0.2873285923816146
implied_close 0.2952658463148083
historical_open 0.2492297735022844
historical_high 0.2492297735022844
historical_low 0.2492297735022844
historical_close 0.2492297735022844
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