Delete row ('1470', '20734') from daily_volatility

ticker_id 1470
day 20734
implied_open 0.2682791829419495
implied_high 0.2873285923816146
implied_low 0.2682791829419495
implied_close 0.2857411415949758
historical_open 0.2587544782221169
historical_high 0.2587544782221169
historical_low 0.2587544782221169
historical_close 0.2587544782221169
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