Delete row ('1243', '20469') from daily_volatility

ticker_id 1243
day 20469
implied_open 0.3921003442997724
implied_high 0.3952752458730499
implied_low 0.3746383856467461
implied_close 0.3778132872200236
historical_open 0.2270054624893419
historical_high 0.2270054624893419
historical_low 0.2270054624893419
historical_close 0.2270054624893419
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