Delete row ('2687', '20525') from daily_volatility

ticker_id 2687
day 20525
implied_open 0.788963040959461
implied_high 0.788963040959461
implied_low 0.7397520665736596
implied_close 0.7873755901728222
historical_open 0.9270712593970326
historical_high 0.9270712593970326
historical_low 0.9270712593970326
historical_close 0.9270712593970326
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