Delete row ('2387', '20208') from daily_volatility

ticker_id 2387
day 20208
implied_open 0.4921097438580139
implied_high 0.4921097438580139
implied_low 0.3778132872200236
implied_close 0.4032124998062436
historical_open 0.7143528539874394
historical_high 0.7143528539874394
historical_low 0.7143528539874394
historical_close 0.7143528539874394
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