Delete row ('900', '20734') from daily_volatility

ticker_id 900
day 20734
implied_open 0.6667293303882769
implied_high 0.7175277555607169
implied_low 0.5651324800433966
implied_close 0.6889536414012194
historical_open 0.3571764269937197
historical_high 0.3571764269937197
historical_low 0.3571764269937197
historical_close 0.3571764269937197
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